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Subject: Chemistry, asked on 24/8/21

Give a chemical test to distinguish between Dil.HCl , dil. HNO3 & dil. H2SO4.

Subject: Chemistry, asked on 5/6/21

Find the missing word
1 A physical change is not accompanied by evolution or absorption of heat

Subject: Chemistry, asked on 27/11/20

Please help with this question

Subject: Chemistry, asked on 20/11/20

What happens when you heat Na2CO3 ?
Write the reaction.

Subject: Chemistry, asked on 12/10/20

Name the anion present in the following compounds:
a)When barium chloride solution is added to a solution of compound b a white precipitate in sellable in dilute hydrochloric acid is formed.
b) The action of heat on the insoluble compound C produces a gas which turns limewater turbid.
c) Compound D when warmed with dilute sulphuric acid gives a gas which turns acidified dichromate solution green.

Subject: Chemistry, asked on 12/10/20

Distinguish by a chemical test:(please do for both)

Subject: Chemistry, asked on 12/10/20

Please solve this question:

Subject: Chemistry, asked on 12/10/20

Distinguish by a chemical test:
a) Sodium carbonate and sodium sulphite.
b)Sodium hydroxide solution and ammonium hydroxide solution.

Subject: Chemistry, asked on 5/7/20

When dilute sulphuric acid reacts with potassium what is the observation made . 5 points

Subject: Chemistry, asked on 4/7/20

Action of heat on washing soda. Observations and identification of gas.

Subject: Chemistry, asked on 21/6/20

Barium chloride is added to sodium carbonate - observation

Subject: Chemistry, asked on 27/3/20

Good afternoon guys!!!!
Q. Name the following.pls answer the questions 18 to 25.(No irrelevant answers pls).

Subject: Chemistry, asked on 27/3/20

Good afternoon guys!!!
Q. Name the following.. Pls answer all of them. [No irrelevant answers pls.]

Subject: Chemistry, asked on 27/3/20

Good afternoon guys!!!

The substance responsible for the silvery black obtained when hydrogen sulphide gas reacts with lead acetate paper.

[No irrelevant answers pls.]

Subject: Chemistry, asked on 31/12/19

please check that the following match the following is correctly answered or not

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