https://padlet.com/bgss/lessonstudy Students should be able to appreciate the steps needed to prepare the insoluble salts and soluble salts. Students should be able to describe the steps required for preparation of salt. en-us 2014-03-04 01:31:04 UTC 2025-09-15 05:20:00 UTC hello@padlet.com kuansiang1 https://padlet.com/bgss/lessonstudy/wish/117443855 Look at the picture on preparation of insoluble salt. In this example, silver chloride is the insoluble salt. Each group are to ask at least one question and questions should not be repeated among the group.]]> 2016-08-03 06:37:41 UTC https://padlet.com/bgss/lessonstudy/wish/117443855 kuansiang1 https://padlet.com/bgss/lessonstudy/wish/117444032 Look at the picture on preparation of soluble salt. In this example, copper(II) sulfate is the soluble salt. Each group are to ask at least one question and questions should not be repeated among the group.

]]> 2016-08-03 06:42:13 UTC https://padlet.com/bgss/lessonstudy/wish/117444032 https://padlet.com/bgss/lessonstudy/wish/118079811 Please look at the diagram carefully]]> 2016-08-12 03:04:35 UTC https://padlet.com/bgss/lessonstudy/wish/118079811 https://padlet.com/bgss/lessonstudy/wish/118081864 Write down the steps for each of these method]]> 2016-08-12 03:49:34 UTC https://padlet.com/bgss/lessonstudy/wish/118081864 https://padlet.com/bgss/lessonstudy/wish/118082190 2016-08-12 03:56:31 UTC https://padlet.com/bgss/lessonstudy/wish/118082190 https://padlet.com/bgss/lessonstudy/wish/118082195 2016-08-12 03:56:42 UTC https://padlet.com/bgss/lessonstudy/wish/118082195 https://padlet.com/bgss/lessonstudy/wish/118082224 By adding the deonised water, why must we add this type of water. If we use tap water or any other type of plain water, will there be a difference?]]> 2016-08-12 03:57:43 UTC https://padlet.com/bgss/lessonstudy/wish/118082224 https://padlet.com/bgss/lessonstudy/wish/118082237 why do you need to add excess]]> 2016-08-12 03:58:18 UTC https://padlet.com/bgss/lessonstudy/wish/118082237 https://padlet.com/bgss/lessonstudy/wish/118082299 why must the sulfuric acid be hot in the preparation 

]]> 2016-08-12 03:59:53 UTC https://padlet.com/bgss/lessonstudy/wish/118082299 https://padlet.com/bgss/lessonstudy/wish/118082301 Why do you need to boil the pure solution]]> 2016-08-12 03:59:57 UTC https://padlet.com/bgss/lessonstudy/wish/118082301 https://padlet.com/bgss/lessonstudy/wish/118082327 How much solution A in an insoluble preparation of salt is needed to have a complete reaction?]]> 2016-08-12 04:00:53 UTC https://padlet.com/bgss/lessonstudy/wish/118082327 https://padlet.com/bgss/lessonstudy/wish/118082338 Is it important to cool the soluble salt? Is there a difference if we immediately pour into the filter paper while it is still hot?]]> 2016-08-12 04:01:47 UTC https://padlet.com/bgss/lessonstudy/wish/118082338 https://padlet.com/bgss/lessonstudy/wish/118082344 how much solution B is needed?]]> 2016-08-12 04:01:58 UTC https://padlet.com/bgss/lessonstudy/wish/118082344 https://padlet.com/bgss/lessonstudy/wish/118082381 what is the thing in the filter paper?

]]> 2016-08-12 04:03:00 UTC https://padlet.com/bgss/lessonstudy/wish/118082381 https://padlet.com/bgss/lessonstudy/wish/118082393 Why do you need to put the deionised water when the salt is insoluble.]]> 2016-08-12 04:03:14 UTC https://padlet.com/bgss/lessonstudy/wish/118082393 https://padlet.com/bgss/lessonstudy/wish/118082404 can ionised water be used]]> 2016-08-12 04:03:28 UTC https://padlet.com/bgss/lessonstudy/wish/118082404 https://padlet.com/bgss/lessonstudy/wish/118082427 is solution a and b acid or base

]]> 2016-08-12 04:04:07 UTC https://padlet.com/bgss/lessonstudy/wish/118082427 https://padlet.com/bgss/lessonstudy/wish/118082587 Why is deionised water needed in the preparation?]]> 2016-08-12 04:07:47 UTC https://padlet.com/bgss/lessonstudy/wish/118082587 https://padlet.com/bgss/lessonstudy/wish/118082686 why must the saturated solution be cooled for the crystal to form]]> 2016-08-12 04:08:31 UTC https://padlet.com/bgss/lessonstudy/wish/118082686 https://padlet.com/bgss/lessonstudy/wish/118082726 why need to use DI water? cleaner, purer]]> 2016-08-12 04:09:22 UTC https://padlet.com/bgss/lessonstudy/wish/118082726 https://padlet.com/bgss/lessonstudy/wish/118082764 the amount of Solution A and Solution B should be the same amount to have a fair experiment ]]> 2016-08-12 04:10:10 UTC https://padlet.com/bgss/lessonstudy/wish/118082764 https://padlet.com/bgss/lessonstudy/wish/118082816  When cold it does not react readily with such common metals as iron or copper. When hot it is an oxidizing agent, the sulfur in it being reduced; sulfur dioxide gas may be released. Hot concentrated sulfuric acid reacts with most metals and with several nonmetals, e.g., sulfur and carbon. 9]]> 2016-08-12 04:11:49 UTC https://padlet.com/bgss/lessonstudy/wish/118082816 https://padlet.com/bgss/lessonstudy/wish/118082831 u add excess to ensure that the solution is neutral

]]> 2016-08-12 04:12:13 UTC https://padlet.com/bgss/lessonstudy/wish/118082831 https://padlet.com/bgss/lessonstudy/wish/118082881 Plain water and tap water might have impurities in it thus , the experiment might not be accurate if you were to use plain water and tap water.]]> 2016-08-12 04:13:40 UTC https://padlet.com/bgss/lessonstudy/wish/118082881 https://padlet.com/bgss/lessonstudy/wish/118082919  By using deionised water/distilled water, This is to get rid of the impurities that is stuck in the salts.]]> 2016-08-12 04:14:43 UTC https://padlet.com/bgss/lessonstudy/wish/118082919 https://padlet.com/bgss/lessonstudy/wish/118082977 By adding different amounts of solution a and b, Will there be a difference in the amount of residue (aka insoluble salts) will be formed? if so... will there be any difference of how diluted or concentrated the salt maybe?]]> 2016-08-12 04:16:16 UTC https://padlet.com/bgss/lessonstudy/wish/118082977 https://padlet.com/bgss/lessonstudy/wish/118083043 Deionised water is used to get rid of impurities in the salt.]]> 2016-08-12 04:17:46 UTC https://padlet.com/bgss/lessonstudy/wish/118083043 https://padlet.com/bgss/lessonstudy/wish/118083183 With different amounts will there be a difference in what the results maybe? for example... will it neutralise the solution or will there be any insouble salt or the entire set up remains the same]]> 2016-08-12 04:21:21 UTC https://padlet.com/bgss/lessonstudy/wish/118083183