Answer:
0.085 moles of oxygen needed to produce 0.085 moles of water.
Explanation:

Moles of water required to produce = 0.085 mol
According to reaction, 1 mole of water is obtained from 1 mole of oxygen gas, then 0.085 mole of water will be obtained:
of oxygen gas
0.085 moles of oxygen needed to produce 0.085 moles of water.
The decay of the isotope N-16 occurs according to the reaction equation; 16/7 N -----> γ + 16/7 N.
<h3>What is a radioactive decay?</h3>
The term radioactive decay has to do with the spontaneous disintegration of an unstable nucleus to yield radiation.
The decay of the N-16 nucleus releases gamma rays which a radioactive radiation according to the equation; 16/7 N -----> γ + 16/7 N.
Learn more about radioactive decay:brainly.com/question/1770619
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Because as you change the mass the volume will change and as you change the volume the mass will change too, it's a constant ratio for each element. Mass and volume are not factors that affect the density. factors that affect the density are temperature and type of the material/element