![]() ![]() I'll see if I can nose around in the code of the project belonging to the second link that you gave It's not a good money making opportunity because people make little money making tutorials and stuff. ![]() I found an infinite voxel terrain generator that someone made and posted in the same thread that you showed me, and it makes use of chunking together blocks of different types, but while they knew what they were doing when they wrote the code for it, the must-have not intended on anyone else knowing what they were doing because the code was extremely hard to read with almost no comments. Any way around I think atlases are depreciated in the newest version of Unity, not sure Yes, as you've said, it's very hard to take apart the code of others' especially if they never specifically intended on anyone doing so. What I mean by this is that a grass block has three textures: top, side, and bottom so how do I give it three different textures when the entire chunk that it is in only has one MeshRenderer? And what about all the other blocks like stone, and sand, and obsidian and ores among other things that can be in that chunk? This would work fine if the entire chunk was only composed of dirt or only stone or something, but gets way more complicated when I could have several hundred different blocks needing several hundred different textures in a single chunk. I'm trying to accomplish the same in Unity, but it seems that I'm at a halt, as the individuality for each physical representation of a block is lost when it gets meshed together with a bunch of other blocks. So from what I understand, Minecraft takes a 16x16x256 area of blocks and then mashes it all together into one object that uses far fewer resources than thousands of individual blocks would. Sorry in advance if this is in the completely wrong place.
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![]() We’re happy to talk through some styling options based on your bridal look. Please email us photos of your bridal hairstyle and dress and we’d love to offer recommendations. I love these earrings but I’m not sure if they will suit my bridal hairstyle and wedding dress?.Feel free to email us photos of your wedding dress and hairstyle and we’d be more than happy to offer styling advice and recommendations before you submit your order. We understand how important it is to choose the right accessories especially when you are ordering online. We offer personalised advice and recommendations no matter where you live in the world. We are here to guide you through the exciting journey of accessorising your wedding dress. This can include almost all necklines including off the shoulder, plunging fronts or backs, cap sleeves, long sleeves and strapless dresses. HAIR: Romantic hairstyles including updos, half up hairstyles and loose curls.ĭRESSES: Style these earrings with wedding gowns with modern luxe or traditional appeal. HEADPIECE: We love to style the Cecile earrings with the STARBURST, SOMERSET, FLORES, LUCILLE and LYRIC headpieces. For a simpler look, style the Cecile earrings with our ROSELLA, LOUVRE, AUDREY or BLAIR veils. Our favourite pairings include our RIVIERA, CATALINA, WEEPING CHERRY, DEWBERRY, PRIMAVERA and THEODORE veils. It can be worn with single or two tier veils in fingertip, chapel or cathedral lengths. VEIL: Wear the Cecile earrings with a plain or embellished veil with lace or crystal details. The minimalist aesthetic of the Cecile earrings complement modern and traditional wedding gowns of refined sophistication. A rush service may be available for a fee. If your order is time critical, please contact us before you submit your order and we can confirm timeframes. Please refer to the "Production and Delivery Times" tab on each listing for more information. Items that are 'made to order' will have a production time. Please note, processing times of 5-7 business days apply for 'ready to ship' items. Please contact your local customs offices if you have any questions. ![]() We are unable to predict the exact arrival time as this will depend on your country's customs processing times and your local postal service. As a guide:ĭue to the pandemic, there may be delays with delivery times due to customs processing and shipping delays. You may be required to pay VAT in order to receive your parcel.Ĭustoms policies and import duties vary widely from country to country, and we have no control over these charges. Value Added Tax (VAT) is a tax that is charged when your parcel reaches the destination country. $25.50 Standard International Air Mail (2-3 weeks).Orders under $350 will ship by Express Post for $13.50.Free shipping via Express Post on orders over $350.If your wedding date is fast approaching, do let us know and we’ll see what we can do for you. If you have ordered a veil with a blusher, we’ll ask you for your height measurement and an idea of where you’ll be positioning the comb in your hair to ensure we cut your blusher to a flattering length. Please look out for our email in your inbox/spam folder. We’ll also check your wedding date and answer any styling or product questions you may have. Once you submit your order, we’ll be in touch to discuss processing/production and delivery timeframes. We’ll get back to you with ideas and recommendations. If you are unsure whether these earrings will suit your wedding dress or bridal hairstyle, email us photos of your dress, hairstyle, venue and any other details which may help us understand your bridal vision. We have included FAQS and styling information on the Cecile earrings in the tabs below. We’re here to assist you through the styling process. Ready to ship: Production times in tabs below.Gold or silver plated chain, crystal pearls. ![]() These delicate details whisper sophistication and style which you will love to wear after your wedding day.īeautifully gift wrapped in our signature packaging to store your heirloom or for gift giving. Cecile is a dainty set of pearl drop earrings featuring light-catching Austrian round pearl drops suspended from a fine chain. ![]() Use of this technology is strictly controlled and not availableįor use within the general population. 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The Implementer of this technology has the responsibility to ensure the version deployed is 508-compliant. ![]() This technology has not been assessed by the Section 508 Office. ![]() Prior to use of this technology, users should check with their supervisor, Information Security Officer (ISO), Facility Chief Information Officer (CIO), or local Office of Information and Technology (OI&T) representative to ensure that all actions are consistent with current VA policies and procedures prior to implementation. Users must ensure sensitive data is properly protected in compliance with all VA regulations. Users must ensure their use of this technology/standard is consistent with VA policies and standards, including, but not limited to, VA Handbooks 61 VA Directives 6004, 6513, and 6517 and National Institute of Standards and Technology (NIST) standards, including Federal Information Processing Standards (FIPS). It integrates with multiple file formats associated with Mac computers and associated applications. It allows the use of the Mac address book, keychain, spell check, and file transfer through drag and drop, which also triggers actions like composing a new message, resizing images, and zipping directories. Mailplane is an e-mail client for MacOS that wraps the Gmail service in a browser in order to provide functions that are not available when using Gmail in a web browser. More information on the proper use of the TRM can be found on the Technologies must be operated and maintained in accordance with Federal and Department security and ![]() Adjusting colors here is as simple as in LR since all tools are placed near to each other, which saves you a lot of time compared to working in Capture One.ĭevelop is the tab you use the most when working in ON1 Photo RAW. This section has several sliders used for color correction. The main bulk of the image editing work is done in the “Edit” mode, which is located on the right. What I like about presets in Photo RAW is that you see its preview to the left and there is no need to select every preset with the mouse like in Lightroom. There are some of them installed but you can download your own.3 on1 photo raw review It is also possible to apply a preset to all photos in the folder. Directly in the “Browse” module you may use One 1 Photo RAW filters. If you connect your camera to the laptop, all images will be displayed in the Preview window at the left and you can easily take a look at your photos. If you add a new photograph you needn't export it to the program. You may add/delete photos out of your folders and all those actions will be visible in the app. The rating system is almost the same as in Lightroom, except they added purple to colored labels, the color score is from 6 and to 0, 1-5 is for star feedback. Personally, I prefer Thumbnail and Filmstrip for more detailed look while editing. You have an opportunity to select between 4 photo view types. ![]() ON1 adopted the software “Browse”, in order you to have an opportunity to quickly have a look at your pictures, without waiting them to download. You can press Cmd+B (on Mac) and Ctrl+B (on Windows) and choose a folder you need by Finder. ![]() Here is a “Browse” module with the help of which you see all folders, photos, downloaded photos on your laptop. You open the app and… no, you needn't to import your pics, creating a special catalogue or download them from the folder to the app. If it proves to be true, expect a wave of updated ON1 Photo RAW reviews. ON1 claims that it can easily detect image areas that need to be selected or masked and the included AI technology is great at locating objects and automatically creating a beautiful mask. The AI Masking Tool is expected to be released in ON1 Photo RAW 2023 December update. ON1 Company states that their software can perform skin smoothening, eye brightening, and teeth whitening automatically. The new Portrait module can automatically detect faces in your photographs and offers a special set of tools for precise retouching. As evident from its name, this tool automatically mixes a collection of images with changing focal lengths and allows to adjust them in real-time to get the desired depth of field. This gives you the freedom to create and edit multi-layered files that will contain unedited files, while also saving all non-destructive adjustments of each image layer. ON1 Photo RAW 2023 now allows you to perform non-destructive layer editing in the Develop and Effects modules. ![]() Image editing that involves Layers is no longer the separate module. Even though the edits won’t be precise, ON1 software developers note that ON1 Photo RAW 2023 AI algorithms will do everything possible to provide accurate synchronization. Photographers can easily import their Lightroom catalogs into ON1 Photo RAW 2023, combine all metadata and save all non-destructive changes. The new interface offers only two modules for work with import and color correction, switching between them is incredibly fast.Īn important new function is the migration of Lightroom parameters. Previously, it was divided into modules focused on individual tasks, like a separate module for Crop or working with Layers. Let me begin this section of my ON1 Photo RAW review by stating that the program’s UI was drastically changed with the latest update. There you can apply filters similar to LR, edit curves, adjust dimensions, export, share, and print. The image editor offers quick editing via tabs and easy-to-use modules. ON1 Photo RAW uses non-destructive image editing, allows batch processing, and includes a BEFORE/AFTER photo comparison effect. Background mode export isn't available, it's very slow.A small number of original and online presets. For more information, refer to Use preferences to manage privacy controls for Office for Mac. There are preference settings available that allow you to configure settings related to diagnostic data and connected experiences for Office on a Mac. Office LTSC for Mac 2021 featuresįor information about the new features in Office LTSC for Mac 2021, refer to the following articles:įor information about the new features in Office 2019 for Mac, refer to the following articles: To review the latest features in each monthly release, refer to What's new in Microsoft 365 or Release notes for Office for Mac.įor early access to new features, check out the Microsoft 365 Insider Program for Business. If you're looking for information to help your users get started with Office for Mac, review the resources on Office Help & Training. If you want to get new Office features on an on-going basis, you should consider moving to a Microsoft 365 (or Office 365) plan that includes Office. Keep in mind that Office LTSC for Mac 2021 and Office 2019 for Mac don't receive new features after they've been released. Featuresįor information about features in the various versions of Office for Mac, review the following resources. For more information, refer to Deploy updates for Office for Mac. For those users with a Microsoft 365 (or Office 365) plan, these updates can also include new or improved features. These updates include, as needed, security updates and non-security updates, such as updates that provide stability or performance improvements for Office. Office for Mac is updated approximately once a month. ![]() Users can switch to a different language without having to reinstall Office. Instead, the language used at app start is based on the preferred locale settings in macOS. There aren't separate installer package files for each language, which means that admins don't need to choose which language to deploy to users. LanguagesĪll the supported languages in Office for Mac are included as part of the installer package (.pkg) file. For more information, refer to Microsoft 365, Office 2021, and Office 2019 support for Apple silicon. All installation and update packages are provided in Universal 2 format. Office provides native support for both Apple silicon and Intel-based Mac devices. For more information, refer to Upgrade macOS to continue receiving Microsoft 365 and Office for Mac updates.įor all the system requirements, refer to System requirements for Microsoft 365 and Office. As new major versions of macOS are made generally available, Microsoft will remove support for the oldest version and support the newest and previous two versions of macOS. ![]() Office for Mac is supported on the three most recent versions of macOS. The following sections are intended to provide information to help you plan your deployment of Office to Mac users in your organization.įor more information, refer to Deployment options for admins for Office for Mac. The following Office apps are available for devices running macOS: Applies to: Office for Mac, Office LTSC for Mac 2021, Office 2019 for Mac Baden from Knysna, South AfricaEvery month of the year is either mentioned or inferred in this song, with only November being overlooked!!.So, every month of the year is either mentioned or alluded to in this amazing song! This something I overlooked when making the previous comment as I live in the southern hemisphere this phenomenon happens in April! Baden from Knysna, South AfricaWith regards to my previous comment regarding all the months, save November, being either referred or alluded to in the song, I overlooked the fact that "Birds Fly To Southern Skies" in early November.Thanksgiving) in the line that also mentions Christmas! Liz from SfBaden - he alludes to "giving thanks" (i.e.Seventhmist from 7th HeavenI always thought he should have mentioned Thanksgiving instead of "Libra Sun." But maybe he couldn't make the rhyme meter work with that word.It makes me so happy every time I listen to it! Overjoyed every time. Sharbel Avellan from Los AngelesFor me, it is the best song to listen to during the Covid Pandemic.‘I Wish’ I’d have liked it, but 1 stinker out of 100 is great in my book! It quickly became a non-favorite & I love Stevie! It was such a far cry from Stevie’s typical genius funk sound, with its repetitive, anemic drum machine with that bubble gum commercial pop feel. Steviefan from UsaThis song was seriously overplayed in rotation in the bank’s Muzak where I worked.Other two over 20 years now but send message bye the moon and sun 24/7. Susan from LancashireSing it every day as i Mmmmmiiiissssssss Kelsie and KJ as daughter is not speaking to me since December.Lyrics licensed and provided by LyricFind Publisher: BMG Rights Management, Kobalt Music Publishing Ltd., Royalty Network, Songtrust Ave, Sony/ATV Music Publishing LLC, Warner Chappell Music, Inc. I just called to say, how much I care, I doĪnd I mean it from the bottom of my heart, of my heart, of my heart To fill your heart like no three words could ever do No giving thanks to all the Christmas joy you bring Not even time for birds to fly to southern skies No harvest moon to light one tender August night Made up of these three words that I must say to youĪnd I mean it from the bottom of my heart ![]() No wedding Saturday within the month of June In fact, here's just another ordinary day No chocolate covered candy hearts to give away ![]() □) To have a bond so close to someone else is so special and something everyone should get to experience. Last edited on Aug 15 2018.Having a best friend is one of life's greatest gifts! (You know, besides dessert. See more words with the same meaning: Internet, texting, SMS, email, chat acronyms (list of).acronym for "back", usually used in video games online chat.Submitted by mattheusjohn from Westminster, London, UK ![]() See more words with the same meaning: opiates.shortened form of brown or bobby, both of which mean "heroin".See more words with the same meaning: uncool person, jerk, asshole (general insults - list of).See more words with the same meaning: criminal, hooligan, gangster, gangsta.See more words with the same meaning: miscellaneous insults (list of).See more words with the same meaning: dude, person of unspecified gender.Get the hell out of my way, b! I ain't playin' b! an offensive way to refer to someone of either gender.See more words with the same meaning: man, men, male.What's up, b? Damn, b, she's fine! B what are you doing. likely short for "brother" or possibly "boy." Used to address a friend or associate.Submitted by Cosmo Kramer from Manhattan, NY, USA See more words with the same meaning: woman, women, female.Let's go to the party and scope some b's. See more words with the same meaning: to borrow or loan.See more words with the same meaning: cigarettes (related to).to let someone smoke a small amount of one's cigarette.See more words with the same meaning: to accomplish, work hard.Citation from " Youth expelled from Montreal college after finding 'sloppy coding' that compromised security of 250,000 students personal data", National Post, Ethan Cox, censored in hope of resolving Google's penalty against this site. Submitted by Pazuzu from Minneapolis, MN, USA a derogatory and sarcastic term for someone who failed in a task.See more words with the same meaning: sports (related to).See more words with the same meaning: drugs.See more words with the same meaning: flirting, hit on, pimp, player, wing-man.See more words with the same meaning: attractive person (either gender).Would you like to hang out tonight? I need an ace at the club. an attractive close friend of the opposite sex used to gain the attention of prospective suitors when in public.Submitted by Henry Bradley from Vallejo, CA, USA See more words with the same meaning: money.Submitted by Jennifer Moore from New York, NY, USA See more words with the same meaning: friend, friends.Derek used to be my number one ace until he tried to take my girl. a very good, trusted friend, often from childhood " homie" " boy".See more words with the same meaning: good, okay, cool, awesome, fun.Citation from "The Witch is Coming", Kiss Me First (Netflix), Season 1 Episode 5 censored in hope of resolving Google's penalty against this site. Person A: How was the gig? Person B: It was ace! The One Direction concert was ace, wasn't it?! Despite the delay, the entertainment was ace! Zayn Malik has ace hair! Your bf has ace hair, bro. ace – ace boon coon – ace buddy – asshole buddy – b – bang buddy – Batman and Robin – bestie – BFF – BFFE – BFFWEOAGSA – bitch – bof – boo – boy – bra – bro – brohan – brohanski – bromance – broseph – brother – brother from another mother – bruddah – bruh – bud – bull – cat – chica – chicka – China – chino – chiquita – chuck – chum – cock blocker – cool – cornbread – cousin – cracker – crew – cut friends – cutty – cuz – dawg – dog – dogg – down – droog – duke – dun – dunn – dunscout – ese – fam – fella – flatmate – FOAF – folks – foo – freakyfreak of the week – frenemy – friencess – friend crush – friends for cut – friends with benefits – friend with benefits – frienemy – frood – FWB – g – gang, the – gee-dog – g funk – girl – girlfriend – glom – goombah – habib – have (one's) back – hobo – hoe – home boy – home dog – homefry – homegirl – homes – home skillet – home slice – homey – homie – homie g – IBFF – kemo sabe – kid – loker – m8 – man – mandinga – mang – mate – mo fo – my boy – my man – neighbro – nigga – nizzle – offensive coordinator – pal – partna – partner – peaches – pimpette – pookie – poppa – posse – potna – raw dog – road dawg – road dog – road-ho – rock – roll-dog – rollin' rat – safety monkey – sista – sister – sister from another mister – son – squad – sweetie – thick – thick as thieves – thug – tight – top dog – Valentine – weezy – whoadie – whodi – wingman – young buckįull definitions of all the slang words listed above: A.The definitions of these slang words appear below the list. To expand these results, click one of the above categories.Where does this category appear in the slang thesaurus? The slang words in this thesaurus category appear below the table of contents. ![]() This can be any time of the day, whatever works best for you. Decide on one hour every day that you can dedicate to studying. The hardest part about studying from home is sticking to a routine. Start a new section in your notebook to take notes or start a Google Doc to keep track of your notes. Also, create a space for you to keep track of review. Get your notebook, textbook, prep books, or whatever other physical materials you have. Spend some time prepping the space with everything you need and you can even let others in the family know that this is your study space. Somewhere you can keep all of your materials, where you can focus on learning, and where you are comfortable. ![]() ![]() Make sure you have a designated place at home to study. These streams are hosted by experienced students who know what you need to succeed.īefore you begin studying, take some time to get organized. Cram live streams will teach, review, and practice important topics from AP courses, college admission tests, and college admission topics. Study, practice, and review for test day with other students during our live cram sessions via Cram Mode. Pay special attention to the units that you need the most improvement in. This will cover all of the units and essay types to prepare you for your exam. We've put together the study plan found below to help you study between now and May. Practice problems are your best friends! Both the FRQs and MCQs had several questions that were similar to previous FRQs and the open-sourced multiple-choice questions on College Board (essentially the same questions with different numbers). This will cover all of the units and essay types to prepare you for your exam We’ve put together this plan to help you study between now and May. Review every unit and question type, and focus on the areas that need the most improvement and practice. Take note of your strengths and weaknesses! The exam is on paper, in school, on Monday, May 13, 2024, at 8:00 AM, your local time.įirst, download the AP Calculus BC Cheatsheet PDF - a single sheet that covers everything you need to know at a high level. ![]() When is the 2024 AP Calculus BC Exam and How Do I Take It? Part B: 4 questions in 60 minutes (calculator not permitted).Ĭheck out our study plan below to find resources and tools to prepare for your AP Calculus BC exam. Part A: 2 questions in 30 minutes (graphing calculator required). Section 2: Free Response - 50% of your total score Part B: 15 questions in 45 minutes (graphing calculator required). Part A: 30 questions in 60 minutes (calculator not permitted). Section 1: Multiple Choice - 50% of your total score The 2024 Calculus BC exam format will be: This year, all AP exams will cover all units and essay types. FYI, something cool is coming your way Fall 2023! □ Format of the 2024 AP Calculus BC exam Unlock Cram Mode for access to our cram events-students who have successfully passed their AP exams will answer your questions and guide your last-minute studying LIVE! And don't miss out on unlimited access to our database of thousands of practice questions. This guide will continue to update with information about the 2024 exams, as well as helpful resources to help you do your best on test day. We know that studying for your AP exams can be stressful, but Fiveable has your back! We created a study plan to help you crush your AP Calc BC exam. Your Guide to the 2024 AP Calculus BC Exam Then it finally clicked and it’s catchy as fuck. I felt I needed to listen to it as a complete package, with the singles being released I played those songs sooo much I just wanted to hear the things I hadn’t heard before. Following that I let it play when I listened to the album as a whole so I could absorb it all. Second listen I followed along with the lyrics and I hated it even more. I hated it on my first listen, didn’t feel like it did much. I really enjoy the Mixolydian feeling in the guitar arpeggios. Listening to it again while I type this, and there is a lot to love. ![]() I can totally respect why Hell’s Itch might be someone else’s favourite. (Disclaimer again: The variety of opinions in this community is what makes it awesome. Out of their other recent jammy stuff, my favourites are Dripping tap (Such energy changes between the soulful Amby singing and the lightning fast guitar noodling etc) and now Laminated Denim (Jammy, but with an awesome underlying structure of polymeters and changing sections that is personally so interesting) And then they bring it all back home again. The soft opening chords and singing, the tension building guitar /flute/synth jam, and then the release of the “Frog Breath” peak rock out is such a change in dynamics and energy. It feels like it starts off in one place, takes a journey somewhere, has a crescendo, and then comes back to where it started. To contrast it, Iron Lung is my favourite. My mind starts to wander away from it when I’m listening to it. There’s little in the way of dynamics, it seems to just stay in the same pocket tonally, vocally, rhythmically etc. It’s the weakest on the album for me personally mainly because it doesn’t seem to evolve much to my ears, and it’s so long. Harmonica Guide by /u/PeterCranberry and /u/JazzlikeApyr Subreddits We LikeĬlick one of the filter buttons below to filter out download codes or vinyl photo posts: King Gizzard Flow Chart by /u/SchizoidGodįull List of Available Tabs by /u/ThomasGully Survivor Threads Archive by /u/SchizoidGod (this includes template-based memes, if there's a viral trend resulting in large quantities of similar images) Join the Discord! Useful Links Something like a tier-posting thread is okay - but if there are dozens of copycat threads it tends to stifle everything else. (user-made content that references a KGATLW lyric is generally acceptable - but something like a cross-posted picture of literal Vegemite is probably not) 4. Phrases like "there is no Planet B" weren't initially coined by King Gizzard and the Lizard Wizard - most printed references aren't related to the band. Memes that are generic or unrelated to the band will probably be removed. We're okay with some memes as long as they actually have King Gizzard material in them. ![]() This includes "DM me for a link" threads. Piracyĭo not post links to leaked/pirated music. A place for all discussions and sharing of things about the Australian band King Gizzard and the Lizard Wizard. The university further disclaims all responsibility for any loss, injury, claim, liability, or damage of any kind resulting from, arising out or or any way related to (a) any errors in or omissions from this web site and the content, including but not limited to technical inaccuracies and typographical errors, or (b) your use of this web site and the information contained in this web site.the university shall not be liable for any loss, injury, claim, liability, or damage of any kind resulting from your use of the web site. The university expressly disclaims all warranties, including the warranties of merchantability, fitness for a particular purpose and non-infringement. This web site is provided on an "as is" basis. "Do not do demos unless you are an experienced chemist!" Please read the following disclaimer carefullyīy continuing to view the descriptions of the demonstrations you have agreed to the following disclaimer. This demonstration provides evidence to support this claim. the ions are mobile, until they find each other and form a solid. What is the significance of this demonstration? The only way the solid lead(II) iodide precipitate can form in the middle of the petri dish is for 1) the Pb(NO 3) 2 and the KI to dissociate into ions in the water and 2) the Pb 2 + ions and I - ions must migrate in the aqueous solution, i.e. However, if the camera is of low quality students may not see the vivid yellow color of the precipitate. In a large lecture hall a document camera is necessary to project the image of the reaction. ![]() This demonstration works best if the instructor uses this demonstration as the basis of a presentation and takes about 12-15 minutes to have students do the activities that accompany this demonstration. The instructor should be prepared to lead a discussion of writing the 'molecular equation", "full ionic equation" and the net ionic equation. The line of precipitate does not begin to appear until a two or three minutes time have elapsed and it takes a few more minutes for the line to reach across the dish. Presenting the Demonstration This demonstration takes about 8 minutes to perform if you rush through it and do it is as a teacher presenting information to students. ![]() Reinforce the concept that soluble ionic salts are strong electrolytes and the ions are mobile ions in solution, i.e. This demonstration, with the pedagogy of having students "do the work" of predicting products, writing equations, and drawing particle level diagrams works best if it is presented AFTER the precipitation of silver chromate demonstration - which is done in a teacher directed manner.ġ. A set of lecture presentation slides to accompany this demonstration is available. ![]() This demo illustrates these rules.Ī student activity sheet to accompany this demonstration is available. 1 1 http ://The solubility rules tell us that salts of group 1 (IA) metals are soluble, salts containing the nitrate anion are soluble, and salts containing the iodide anion are insoluble except for those containing the lead(II) cation (among others). The net ionic reaction is Pb 2 + ( aq ) + 2 I - ( aq ) -> PbI 2 ( s ) Eventually the lead ions begin to react with the iodide ions and precipitate out where they "meet" which is near the center of the Petri dish. The solid potassium iodide ane solid lead nitrate dissolve and their constituent ions begin to diffuse through the water. It could also be used when the mechanism of dissolution is presented to illustrate that dissolved substance are still present, even though they may become "invisible." This demonstration is usually performed when solubility rules, precipitation reactions, and net ionic reactions are being discussed. This demonstration, when presented as a guided-inquiry active student learning approach, combined with particle diagrams can be highly effective because it addresses all three areas of Johnstone's triangle: macroscopic, symbolic, and microscopic (particle level). |
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