Question

Zinc granules are heated with concentrated sodium hydroxide solution and the gas evolved is passing through soap solution,then the tiny bubbles float in the air. Answer the following questions: 1. Which gas is evolved in the reaction 2. Why do soap bubbles rise in the air 3.write a fully balanced chemical equation 4.what is the common of testing the gas evolved?

Answer 1

hey mate !!

here is your answer !!

here we have talk and find about what happens when zinc granules are heated with Sodium Hydroxide .

we know that when the bases are reacting with salt they are formed hydrogen gas (H2).

here we have one molecules and one compound .like zinc and sodium hydroxide .we denoted or symbolized to zinc (Zn) and sodium hydroxide (NaOH).

now ,

in the reactants sodium hydroxide solution is heated with zinc granules than the product side formed sodium zincate and also hydrogen gas formed .

note :-
solution showed it's a aqueous.



: 1. Which gas is evolved in the reactions?

hydrogen gas formed during reaction .

2. Why do soap bubbles rise in the air ?

the surface form bubbles during would be higher density than air. this cause bubbles rise in the air.

3 .write a fully balanced chemical equation ?

Zn(s) + 2NaOH(aq)--- ----> Na2ZnO2aq) + H2g)

4. what is the common of testing the gas evolved?

when we take candle flame during the reaction the pop sound produce this show that here hydrogen gas formed.

be brainly