What is the first step in writing a balanced chemical equation?Multiple choice question.Classify the chemical reaction.Write the chemical equation without coefficients.Determine the mass of each substance involved.Add coefficients to the reactant side until the number of molecules on each side is equal.

Select the option that best completes the following sentence. Chemical equations are balanced by changing:the positions of the reactants and productsthe subscripts in the chemical formulasthe coefficients in front of the chemical formulasthe number of reactants and products

How does a balanced chemical equation show the conservation of mass?A.It shows that the mass of the products is greater than the mass of the reactants when a reaction increases the moles of substances.B.It shows that the number of each type of atom stays the same.C.It shows that the total number of moles of substances stays the same.D.It shows that the mass of the reactants is greater than the mass of the products when gases are produced by the reaction.

Write the balanced equation for the following chemical reactions.(i) Hydrogen + Chlorine → Hydrogen chloride(ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride(iii) Sodium + Water → Sodium hydroxide + Hydrogen

Explain why chemical equations need to be balanced.

Write the balanced equations for the following chemical reactions.1. Barium chloride + Sodium sulphate → Barium sulphate + Sodium chloride.2. Sodium + Water → Sodium hydroxide + HydrogenOther questions asked in previous years’ board examinations