How can you improve the percent yield of copper in this lab? check all possible strategies that will you do so

Measure reactants precisely.
Stir to help the reaction take place.
Wait patiently until the reaction completes.
Make sure to recover as much copper as possible.


Just did this as well.

1. o2(g)as a product

Answer:

a. energy is absorbed in the reaction.

explanation:

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.