Answer:

Explanation:
Given
Required
Calculate the number of moles
We'll apply the following formula to solve this question

Where

The above equation is an illustration of the ideal gas law
Substitute values for p, V, R and T in:




<em>Hence, there are 243.605 moles</em>
Zinc because the only metals that would be able to reduce copper ions in solution would be hydrogen, lead, tin, nickel, iron, zinc, aluminum, Magnesium, sodium, calcium, potassium, and lithium. and according to your answer choices Zinc is the answer.
(4) total number of valence electrons, because they exist in the same group.