Answer:
A part.
Explanation:
Because the reactants must be the exact same as the the products.
There would be 79 electrons present in each atom of gold. I hope this helps :)
Answer:
A mole ratio is a conversion factor that relates the amounts in moles of any two substances in a chemical reaction
Explanation:
Many things could indicate that a chemical change has occurred. The release of a gas, or bubbling, etc. Just be careful not to mix it up with physical changes. A chemical change means that the chemical structure is different. You can reverse a physical change, but you cannot reverse a chemical reaction.
Answer:
b.fission, because the reaction absorbed energy
Explanation:
