Answer:
I believe the answer is A
Explanation:
I hope this helps :)
<span>Solving for the formula mass of calcium nitrate:
Atom | Atomic Mass
Ca | 1 x 40.08 = 40.08
N | 2 x 14.01 = 28.02
O | 6 x 16 = 96
FM = 164.10 amu
Solving for the percent:
%O2 = mass of oxygen / mass of compound x 100%
%O2 = 96 amu / 164.10 amu x 100%
%O2 = 58.50% or 59%</span>
Answer: food is energy :>
Explanation: