An average home in colorado requires 2.00 x 107 kj of heat per month. how many grams of natural gas (methane) must be burned to supply this energy?
ch4(g) + 2o2(g) → co2(g) + 2h2o(l) δh°rxn= –890.4 kj/mol

3.6*105g CH4

Explanation:

The detailed solution is shown on the image. From the detailed chemical reaction, we calculate the mass of methane required in the standard combustion reaction of methane and use it to estimate the mass required to produce the quantity of heat required in the question.

a corroding iron, if that's one of your choices