What is the energy change that will occur when 25.5 grams of oxygen gas (o2) react with excess methane (ch4) according to the reaction below?

ch4 + 2 o2yields co2 + 2 h2o delta h = -889 kj/mol

select one:
a. 354 kj of energy will be given off by the reaction
b. 354 kj of energy will be absorbed by the reaction
c. 708 kj of energy will be given off by the reaction
d. 708 kj of energy will be absorbed by the reaction