At the equilibrium N2+3H2 = 2NH3, [NHz]=1M; after a catalyst is added to the equilibrium (NH3] will be increased.
True
False

Find the protons, electrons and neutrons for strontium with a mass of 83

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.