Baking soda (NaHCO3) decomposes when it is heated according to the equation below. How many kilojoules of heat are required to decompose 1.96 mol NaHCO 3(s)?

2NaHCO 3(s) + 129 kJ → Na2CO3(s) + H2O(g) + CO2(g)

A. 129 kJ

B. 2.53 × 102 kJ

C. 258 kJ

D. 126 kJ

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.

What must occur for air masses to form fronts

Which subshell is represented by the actinides family?