Before you add salt to water, what temperature is closest to the one you have to reduce water to in order for ice crystals to form?

What happens when the temperature of a solution increases?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.