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Chemistry^^

Saturday, September 24, 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. ZnCO3 (s) 2H (aq) - Zn 2 (aq) H2O (l) CO2 (g). Ii) Why excess zinc carbonate is used? Is to ensure that all the hydrochloric acid is completely reacted, before filtering the excess unreacted zinc carbonate from the zinc chloride solution. Iii) Briefly explain how the zinc chloride crystals can be obtained. Wwwsmile .blogspot.com. The g...

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Saturday, September 24, 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. ZnCO3 (s) 2H (aq) - Zn 2 (aq) H2O (l) CO2 (g). Ii) Why excess zinc carbonate is used? Is to ensure that all the hydrochloric acid is completely reacted, before filtering the excess unreacted zinc carbonate from the zinc chloride solution. Iii) Briefly explain how the zinc chloride crystals can be obtained. Wwwsmile .blogspot.com. The g...

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Chemistry^^ | yhss-3e5-chemistry-03-2011.blogspot.com Reviews

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Saturday, September 24, 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. ZnCO3 (s) 2H (aq) - Zn 2 (aq) H2O (l) CO2 (g). Ii) Why excess zinc carbonate is used? Is to ensure that all the hydrochloric acid is completely reacted, before filtering the excess unreacted zinc carbonate from the zinc chloride solution. Iii) Briefly explain how the zinc chloride crystals can be obtained. Wwwsmile .blogspot.com. The g...

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yhss-3e5-chemistry-03-2011.blogspot.com

1

Chemistry^^: Q5 Excess zinc carbonate is added to hydrochloric acid in the preparation of zinc chloride salt.

http://www.yhss-3e5-chemistry-03-2011.blogspot.com/2011/09/q5-excess-zinc-carbonate-is-added-to.html

Saturday, September 24, 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. ZnCO3 (s) 2H (aq) - Zn 2 (aq) H2O (l) CO2 (g). Ii) Why excess zinc carbonate is used? Is to ensure that all the hydrochloric acid is completely reacted, before filtering the excess unreacted zinc carbonate from the zinc chloride solution. Iii) Briefly explain how the zinc chloride crystals can be obtained. Wwwsmile .blogspot.com. Name'...

2

Chemistry^^: July 2011

http://www.yhss-3e5-chemistry-03-2011.blogspot.com/2011_07_01_archive.html

Sunday, July 17, 2011. She explained her works clearly, it is detailed and easy to understand. Her diagrams are clear and that helps me to understand a lot. i like her answers. Wwwsmile .blogspot.com. Her Answer are detailed. However, the words are too small and its difficult for mii to read. She should also separate her answers into paragraphs. And that would be better. greatly done:). Wwwsmile .blogspot.com. Wwwsmile .blogspot.com. Sunday, July 10, 2011. Sulfur is a non-metal because:. Isotopes of the ...

3

Chemistry^^: Q1 Zinc nitrate reacts with aqueous ammonia (NH4OH) to form a salt and a base.

http://www.yhss-3e5-chemistry-03-2011.blogspot.com/2011/09/q1-zinc-nitrate-reacts-with-aqueous_24.html

Saturday, September 24, 2011. Q1 Zinc nitrate reacts with aqueous ammonia (NH4OH) to form a salt and a base. Ii) Describe the observations for the reaction. When zinc nitrate solution reacts with ammonium hydroxide (both colourless), a white precipitate of zinc hydroxide is will be produced . Wwwsmile .blogspot.com. Subscribe to: Post Comments (Atom). 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.

4

Chemistry^^: Q2 Ammonium sulfate is heated with sodium hydroxide.

http://www.yhss-3e5-chemistry-03-2011.blogspot.com/2011/09/ii-describe-test-for-gas-hold-piece-of.html

Saturday, September 24, 2011. Q2 Ammonium sulfate is heated with sodium hydroxide. Ii) Describe a test for the gas. Hold a piece of damp red litmus paper over the mouth of the test tube. When the damp red litmus paper turns blue, it mean that ammonia gas is produce. Wwwsmile .blogspot.com. Subscribe to: Post Comments (Atom). 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. View my complete profile.

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Chemistry^^: Q1 Zinc nitrate reacts with aqueous ammonia (NH4OH) to form a salt and a base.

http://www.yhss-3e5-chemistry-03-2011.blogspot.com/2011/09/q1-zinc-nitrate-reacts-with-aqueous_9731.html

Saturday, September 24, 2011. Q1 Zinc nitrate reacts with aqueous ammonia (NH4OH) to form a salt and a base. Iii) Write a chemical equation for the reaction (include state symbols). Zn(NO3)2 (aq) 2NH4OH (aq) - 2NH4NO3 (aq) Zn(OH)2 (s). Wwwsmile .blogspot.com. Subscribe to: Post Comments (Atom). 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. Q2 Ammonium sulfate is heated with sodium hydroxid.

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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.

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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.

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Wan Ling! (＾▽＾): July 2011

http://yhss-3e5-chemistry-16-2011.blogspot.com/2011_07_01_archive.html

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-18-2011.blogspot.com

Chem Blog :): July 2011

http://yhss-3e5-chemistry-18-2011.blogspot.com/2011_07_01_archive.html

CLICK HERE FOR THOUSANDS OF FREE BLOGGER TEMPLATES. Sunday, July 3, 2011. Comments on 3 answers. Hi Mr Tan, I have given some comments of other people's answer (in my blog? As told. So people, please pardon me for any negative comments.Thx. Posted by Ong Kai Qi. Friday, July 1, 2011. 1 What does an atom looks like? What are the sub-atomic particles inside it? Talk about electrons, neutrons, protons, electron shells, nucleus.). 4 Chlorine-35 atom and Chlorine-37 atom are called isotopes.Use these two ...

yhss-3e5-chemistry-22-2011.blogspot.com

chemistry .

http://yhss-3e5-chemistry-22-2011.blogspot.com/2011_06_01_archive.html

On Monday, June 27, 2011 at 2:39 AM 0 comments ♥. Well , well , well . On Monday, June 27, 2011 at 2:39 AM 0 comments ♥. Well , well , well . I created this blog to do any questions that mr tan uploads on his blog! I'm from class 3e5 . :) my hobby? It's to read, watch and listen . The most common thing i do is to sleep . i may seem daydreaming. In class but i know what is going on! Don't criticize me , if you don't like it when i criticize you! Those singing ,. Voices from my heart! Let bygone be bygone.

yhss-3e5-chemistry-18-2011.blogspot.com

Chem Blog :): September 2011

http://yhss-3e5-chemistry-18-2011.blogspot.com/2011_09_01_archive.html

CLICK HERE FOR THOUSANDS OF FREE BLOGGER TEMPLATES. Thursday, September 15, 2011. Questions on Ionic Equations, Colours of Cations and Anions, Acid, Bases, Alkalis, Salts. Q1 Zinc Nitrate reacts with Aqueous Ammonia (NH. OH) to form a salt and a base. I) Name the salt and base. Ii) Describe the observation for the reaction. Iii) Write a chemical equation for the reaction (include state symbols). Iv) Write an ionic equation for the reaction. Ans: (i) The salt is ammonium nitrate (NH. I) Explain why this m...

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yhss-3e5-chemistry-01-2011.blogspot.com

CHEMISTRY

One day on the Tonight Show, Jay Leno showed a classified add that read: "Do you have mole problems? If so, call Avogadro at 602-1023.". Ysabelle Torres (01) 3e5'11. My current worst subject is Chemistry :P. Please comment on my posts (constructive criticisms. Personal blog: http:/ www.pirouettesoncloudnine.blogspot.com. Thursday, 22 September 2011. EXCESS ZINC CARBONATE IS ADDED TO HYDROCHLORIC ACID IN THE PREPARRATION OF ZINC CHLORIDE SALT. I) Write an ionic equation for this reaction. ZnCl (aq) H 2.

yhss-3e5-chemistry-03-2011.blogspot.com

Chemistry^^

Saturday, September 24, 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. ZnCO3 (s) 2H (aq) - Zn 2 (aq) H2O (l) CO2 (g). Ii) Why excess zinc carbonate is used? Is to ensure that all the hydrochloric acid is completely reacted, before filtering the excess unreacted zinc carbonate from the zinc chloride solution. Iii) Briefly explain how the zinc chloride crystals can be obtained. Wwwsmile .blogspot.com. The g...

yhss-3e5-chemistry-037-2011.blogspot.com

Chemistry 2011

PS If You came to my blog out of boredom feel free to feed the fish at the bottom of the blog.Just click on the water. 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? Iii) Briefly explain how the zinc chloride crystals can be obtained. I) Normal Equation: ZnCO 3. Aq) - - Zn ². O (L) CO 2. Ionic Equation: ZnCO 3. Aq) - - Zn ². O (L) CO 2. Q3 An...

yhss-3e5-chemistry-04-2011.blogspot.com

Chemistry

Monday, September 19, 2011. 7:39 AM / 0 comments. Q1 Zinc nitrate reacts with aqueous ammonia (NH. OH) to form a salt and a base. I) Name the salt and the base. Ans: The salt is Ammonium Nitrate (. And the base is Zinc Hydroxide . Ii) Describe the observations for the reaction. Ans: White ppt. is formed. Iii) Write a chemical equation for the reaction (include state symbols). Iv) Write an ionic equation for the reaction. Q2 Ammonium sulfate is heated with sodium hydroxide. Describe a test for the gas.

yhss-3e5-chemistry-05-2011.blogspot.com

...Relaxing ...

X Chua Shin Yoong. X Somewhere in Bukit Batok. St Anthony's Primary School. X Yuhua Secondary School. X Three Express Five. X Eighteen of May, Nineteen ninety six. X Taurus and Rat. X From a family of five. X Oldest sister with two younger sisters (age 12 and 10). X Learning about new things. X Getting storybook confiscated. 05 Shin Yoong (me! This blogskin is made by SI. And the pictures is taken from here. And lastly, part of the coding is from this skin. Saturday, September 17, 2011 Y. OH (aq) = 2NH 4.

yhss-3e5-chemistry-06-2011.blogspot.com

A World of Chemistry

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-07-2011.blogspot.com

Land of Chemistry.

Thursday, September 22, 2011. Question 5. (:. 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? Iii) Briefly explain how the zinc chloride crystals can be obtained. Ii) It is to ensure that zinc carbonate has reacted with the sulfuric acid completely, before filtering the excess unreacted zinc carbonate from the zinc chloride solution. Posted by ♥. Question 4. (:. Iii) The possi...