Answer:
B
the humidity is the % of water in the air and it is out of 100% of the air. so 10/100 is low
Nitrogen can form a diatomic molecule held together by triple bonds.
A second order reaction varies with the square of the concentration of the reactant. Therefore, halving the concentration will reduce the rate of reaction by a factor of 4.
The answer is E.
Mixture/ compound
hope this helps
