Question

لند
مع
عنص22
جنورتر
Grive
of a chemical
reaction for each of the following
a A change in colous is observed .
evolved
c) Sound
is produced
عن
-​

Answer 1

Answer:

a) When copper reacts with water it's color changes from its element color to reddish brown color

b) When limestone and hydrochloric acid react with each other a gas is evolved known as carbon dioxide

c) Burning of fire