Answer:
PV=nRT
0.20×v = 0.070×8.00
0.20V= 0.56
0.20v÷0.20v = 0.56÷0.20v
= 2.8
magnesium
Explanation:
because zinc does not react with water because it too forms a protective layer of insoluble.
Calcium is the element that has 2 valence electrons.
Answer: thermal energy
