Question

What could have accounted for a percent yield of

less than 100% in this lab?

Check all that apply.

-The copper chloride did not fully dissolve in water before performing the reaction.

-The mass of the copper was not measured with the same accuracy.

-Not all of the copper was collected in the
filter.

-Not enough time was allowed for all of the
aluminum to react.

-There were impurities in the aluminum.

Answer 1

all of them

Step-by-step explanation:

Answer 2

Answer is all.

The copper chloride did not fully dissolve in water before performing the reaction.

The mass of the copper was not measured with the same accuracy.

Not all of the copper was collected in the filter.

Not enough time was allowed for all of the aluminum to react.

There were impurities in the aluminum