In stoichiometric calculations that begin with the mass of H2(g) and require the…
CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance
Problem
In stoichiometric calculations that begin with the mass of H2(g) and require the determination of the mass of H2O(l) produced, which of the following best explains why the chemical equation must be balanced before any numerical work is done?
(a) It verifies that the total mass of reactants equals the total mass of products.
(b) It provides the mole ratios that relate moles of one substance to moles of another.
(c) It verifies that electrical neutrality is maintained on both sides of the equation.
(d) It is needed in order to determine which reactant will be limiting in the reaction.