Classify the following processes as spontaneous and nonspontaneous. Explain your answers in terms of whether energy must be continually supplied to keep the process going. a) water is decomposed into hydrogen and oxygen gas by passing electricity through the liquid. b) an explosion detonates after being struck by a falling rock. c) A coating of magnesium oxide forms on a clean piece of magnesium exposed to air. d) A light bulb emits light when an electric current is passed through it. e) A cube of sugar dissolves in a cup of hot coffee.

1.) Complete A and B to move on. a.) Write the complete, balanced chemical equation for the following reaction on a separate sheet of paper. Provide products where they are not given. Assume that the reaction is spontaneous. Propane (C3H8) + oxygen → carbon dioxide + water Type the sum of the coefficients in the equation into the answer blank.  If there is no coefficient, count it as one. Include ( g, s, l, or aq) b.) Write the complete, balanced chemical equation for the following reaction on a separate sheet of paper. Provide products where they are not given. Assume that the reaction is spontaneous. Diphosphorus pentoxide + water → Type in the coefficient and formula for the product in the equation that contains phosphorus. Include ( g, s, l, or aq)

1. State the first and second laws of thermodynamics