Use the following balanced chemical equation- 2 Ag + CuCl2 —> 2 AgCl + Cu
How many moles of copper, Cu, are produced when 45 moles of silver, Ag, are reacted?
(Put unrounded number in the answer box.)

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

it would be a gas formation

the awnser is group 12

i wish i could but this one is weird give me abc and i can solve it.