The answer it the 3 one I hope this helps
D:
When electrons are gained, the charge of the atom decreases.
When you are given an atom with a charge, the oxidation of that atom is the charge. So by going from a Cr^3+ (Oxidation Number = 3) to a Cr^2+ (Oxidation Number = 2), the Oxidation Number thus decreases.
The noble gases, because they already have a full valence shell
Answer:
1 mole nitrogen produces 2 moles ammonia
How many moles you need for 155 mol ammonia?
155/2 moles
Explanation:
Answer:
The eutrophication of oceans.
Explanation:
This is the result of an increase in phosphates and nitrogen dissolved in water, at the end when it reaches the oceans, they are going to deposit in the bottom of the ocean and they are going to promote the production of algae.
With an increase of the population of algae, the sunlight will not reach the bottom, will consume the oxygen of the oceans, leaving a reduction in fish and other living things population.
