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Wan Ling! (＾▽＾): Simple & Short question
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65342;▽＾). Simple and Short question. Which element is heavier? Reason: Look at the nucleon number/mass number/Ar (relative atomic mass). Which number is bigger? Subscribe to: Post Comments (Atom). View my complete profile. Ethereal template. Powered by Blogger.
yhss-3e5-chemistry-06-2011.blogspot.com
A World of Chemistry: When I was in Genting
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A World of Chemistry. Friday, 1 July 2011. When I was in Genting. Labels: sister and I. Subscribe to: Post Comments (Atom). Life is all about learning and learning more. View my complete profile. Colleagues and Mr.Tan. Awesome Inc. template. Powered by Blogger.
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chemistry.....
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Thursday, 22 September 2011. Q4 Sulfuric acid is titrated with potassium hydroxide in the preparation of potassium sulfate salt. I) Explain why this method is recommended for the preparation for this salt. Ii) Write an ionic equation for the reaction. Subscribe to: Post Comments (Atom). There was an error in this gadget. View my complete profile. Q5 Excess zinc carbonate is added to hydrochloric . Q4 Sulfuric acid is titrated with potassium hydrox. Q3 An unknown green solution is heated with a piec.
yhss-3e5-chemistry-29-2011.blogspot.com
Chemistry: Q3 An unknown green solution is heated with a piece of aluminium foil and sodium hydroxide solution.
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Where all sort of explosion comes alive. Thursday, September 22, 2011. Q3 An unknown green solution is heated with a piece of aluminium foil and sodium hydroxide solution. I) The gas produced turns damp red litmus paper blue. Name the gas evolved. The gas is Ammonia. Ii) This is a confirmatory test for an anion. Name this anion. The anion is Nitrate. Iii) Give a possible cation which gives the green solution. Subscribe to: Post Comments (Atom). Santa provided by bunnyhero labs. View my complete profile.
yhss-3e5-chemistry-06-2011.blogspot.com
A World of Chemistry: Prepare for EYE : 5 Questions on Ionic Equations, Colours of Cations & Anions, Acids, Bases, Alkalis, Salts
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A World of Chemistry. Friday, 23 September 2011. Prepare for EYE : 5 Questions on Ionic Equations, Colours of Cations and Anions, Acids, Bases, Alkalis, Salts. Zinc Nitrate Aqueous ammonia - Zinc hydroxide Ammonium Nitrate. Ii) Observation of reaction: When. Zinc nitrate(also colourless solution),. White precipitates formed as. Iii) Zn(NO 3 ). OH (aq) - Zn(OH). Zinc nitrate and ammonium hydroxide. Subscribe to: Post Comments (Atom). Life is all about learning and learning more. View my complete profile.
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A World of Chemistry: September 2011
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A World of Chemistry. Friday, 23 September 2011. Q5 Excess zinc carbonate is added to hydrochloric acid in the preparation of zinc chloride salt. Ii) Excess Zinc carbonate. Is used to make sure that all the hydrochloric acid are. Fliter out the excess zinc carbonate. From the solution and the zinc chloride. Solution will be left.Zince chloride crystals can be obtained by. And allow the sartuated zinc chloride solution to. Crystals of zinc chloride. Labels: excess solid method. I) Potassium sulfate is a.
yhss-3e5-chemistry-24-2011.blogspot.com
create & inspire.
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Tuesday, 5 July 2011. Zoom in for the sticky note! Gateway to Harry Potter World.not :D. You think you know me. This is Su here. ;). This is practically all about chem here. see how it progress. in any case, pardon me.i know my blog sucks :). You think you know me. Hey guys, please spend some time over here and read through my posts. Leave some comments as well. TYVM and very much appreciated :). Ps u read mine and i will read yours. DEAL? Say it out. :). I rock u stone. Template by : mymost.
yhss-3e5-chemistry-16-2011.blogspot.com
Wan Ling! (＾▽＾): July 2011
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65342;▽＾). Comments on friends' chemistry blog. Her answers are good and detailed. She included some examples to relate to her answers. Her answers (especially for the first question) was quite lengthy so I think she must have done a lot of research. But I think for question 5, it will be better if she can add in the physical properties. For sulfide ion, there should be a (2-) outside bracket. Chihiro reading comic book. My "Thankyou" letter is pinned on her wall! 1 What does an atom looks like? An atom ...
yhss-3e5-chemistry-10-2011.blogspot.com
Chemistryy!
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Kho Ziqing, (10). Yuhua Secondary School, 3e5. Concert Band, Clarinet (:. 3rd Oct, Libra :. Friday, September 23, 2011 ( 7:43 AM ). Zinc nitrate reacts with aqueous ammonia (NH 4. OH) to form a salt and a base. I) Name the salt and the base. The salt is Ammonium nitrate and the base is Zinc hydroxide. Ii) Desribe the observation for the reaction. When zinc nitrate reacts with the aqueous ammonia, white precipitate is form and it is soluble in excess to give a colourless solution. OH (aq) - Zn(OH). Excess...
yhss-3e5-chemistry-35-2011.blogspot.com
chemistry.....
http://yhss-3e5-chemistry-35-2011.blogspot.com/2011/09/q5-excess-zinc-carbonate-is-added-to.html
Thursday, 22 September 2011. Q5 Excess zinc carbonate is added to hydrochloric acid in the preparation of zinc chloride salt. I) Write an ionic equation for the reaction. Ii) Why excess zinc carbonate is used? Zinc carbonate is used to ensure that all the hydrochloric acid is completely reacted.When there is excess zinc carbonate seen,the reaction between the zinc carbonate and hydrochloric acid has stopped. Iii) Briefly explain how the zinc chloride crystals can be obtained. View my complete profile.
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