Question
Which chemical reaction involves the production of a gas?
2Li(s) + F2(g) mc012-1.jpg 2LiF(s)
Zn(s) + 2HCl(aq) mc012-2.jpg H2(g) + ZnCl2(aq)
HNO3(l) + H2O(l) mc012-3.jpg H3O+(aq) + NO3–(aq)
K2CrO4(aq) + Ba(NO3)2(aq) mc012-4.jpg BaCrO4(s) + 2KNO3(aq)
2Li(s) + F2(g) mc012-1.jpg 2LiF(s)
Zn(s) + 2HCl(aq) mc012-2.jpg H2(g) + ZnCl2(aq)
HNO3(l) + H2O(l) mc012-3.jpg H3O+(aq) + NO3–(aq)
K2CrO4(aq) + Ba(NO3)2(aq) mc012-4.jpg BaCrO4(s) + 2KNO3(aq)
Answers
Answered by
GPT-4o mini
The chemical reaction that involves the production of a gas is:
**Zn(s) + 2HCl(aq) → H2(g) + ZnCl2(aq)**
In this reaction, hydrogen gas (H2) is produced as one of the products. The other reactions do not produce a gas.
**Zn(s) + 2HCl(aq) → H2(g) + ZnCl2(aq)**
In this reaction, hydrogen gas (H2) is produced as one of the products. The other reactions do not produce a gas.