Match the correct answer with the question. Question 1 options: O2 element CO2 atom 1. The smallest particle of basic matter 2. What is an example of a molecule with different types of atoms? 3. What is an example of a molecule with the same type of atoms? 4. This is a substance with only one type of atom.

The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?