Which has the larger atomic mass carbon or neon?

What reaction is taking place? 02 + c3h8 = h20 + co2

Why does his teacher ask him to balance the equation by including the correct coefficient

An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh