The industrial synthesis of H_2 begins with the steam-reforming reaction, in which methane reacts with high-temperature steam: CH4(g) + H2O (g) → CO (g) + 3H2(g)
What is the percent yield when a reaction vessel that initially contains 63.0 kg CH4 and excess steam yields 12.9 kg H2?

Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.