In the reaction MgCl2 + 2KOH → Mg(OH)2 + 2KCI, if 3 moles MgCl2 are added to 4 moles KOH, what determines how much Mg(OH)2 is made? A. The amount of KCI
B. The amount of MgCl2
C. The amount of MgCl2 + KOH
D. The amount of KOH

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.