Question

give a chemical change in which a gas liberated in a double decomposition reaction.?

give correct answer..
no silly answer..
I will mark u brainlist..
answer fast..​

Answer 1

Answer:

Double decomposition: This is a type of chemical change in which two compounds in a solution react to form two new compounds by mutual exchange of radicals.

click the picture to view formula

Answer 2

Answer:

potassium chromate into the solution of barium sulphate.

Explanation:

K2rO4 into Baso4