matter is not created or destroyed
Chemical changes occur after a chemical reaction.
Heat?
This is a sign of a chemical reaction.
In the chemical installations of the plant.
Any reaction occur.
no is not a chemical reaction
Any reaction occur.
Adding a catalyst a chemical reaction can occur with a lower activation energy.
Thermodynamically favorable reaction will occur. Also, if the neutral element is higher in the activity series than the charged element, then the reaction will occur.
yes
A chemical reaction occur.
A chemical reaction occur.