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.

answer; /// i believe that the correct answer is that it lets you see and evaluate different formats as you develop your workbook;

a) which ethnic groups live in this community?

i just took test