Methane gas (CH4) when burns with oxygen (O2) gives carbon dioxide and water. Write the balanced chemical equation and provide the following information in terms of reactants and products in the equation. [5 Marks]
(a) no. of molecules
(b) no. of moles
(c) molar mass
(d) total mass of reactants and products
What does statement (d) infer?
Balanced chemical reation: 1 Mark
Each part: 1 Mark
1. The balanced chemical equation is:
CH4(g)+2O2(g)→2H2O(l)+CO2
Methane+Oxygen→Water+carbon di−oxide
2.
Statement (d) infers that law of conservation of mass is obeyed.