Hello there.
An atom that has the same amount of atoms of each element on both sides of the reaction obeys what law
<span>law of conservation of mass</span>
Your answer is random because metals form huge structures in which electrons in the outer shell of the metal it makes atoms free to move.
The volume of a gas is dependent on:
1. Pressure
2. Temperature
3. Amount of gas.
According to provided equation it is clear that Zn metal is oxidized from Zn⁰ into Zn²⁺ which means that Zn metal dissolves and forming Zn²⁺ solution so the correct answer is:
mass of the Zn(s) electrode decreases
I think it is B, but i am not sure
