In the Copper Cycle Lab the experimental results should have as much at the end of the experiment as at the beginning. This proves the law of .

atoms or 'mass'

Explanation:

Mass reaction which postulates that the amount of reactants in a reaction should be equal to the amount of products from that reaction. hence a balanced reaction.

citizens were able to charge more for their goods and services

answer; the values, beliefs, and assumptions about appropriate behavior that members of an organization share;