Which statement explains how balanced chemical equations obey the law of conservation of mass? Choose the correct answer.

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

In which reaction is precipitation occurring?

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.