3. Chemical Reactions

Which of the following is the correctly balanced equation for the nuclear fission of uranium-235 when it is bombarded with a neutron?

Which of the following is the correctly balanced chemical equation for the reaction between NaCl(aq) and Hg2(C2H3O2)2(aq)?

In the chemical reaction NaOH + HCl → NaCl + H2O, which molecules are the reactants?

In the chemical equation 2HCl + Na2O → xNaCl + H2O, what value of x will balance the equation?

Consider the following unbalanced chemical equation: C_2H_5OH + O_2 → CO_2 + H_2O. What is the total number of oxygen atoms on the right-hand side of this chemical equation?

Why is it important to balance a chemical equation?

Which of the following actions is permitted when balancing a chemical equation?

Which of the following is the correctly balanced chemical equation for the combustion of propane (C_3H_8)?

Why must chemical equations be balanced?

When potassium hydroxide (KOH) reacts with hydrochloric acid (HCl), which of the following represents the correct products of the reaction?

Which of the following correctly balances the half-reaction for the reduction of nitrate ion in acidic solution, including hydrogen atoms and charges?NO_3^- → NO_2

Which of the following is the correctly balanced chemical equation for the reaction of S_8 with O_2 to form SO_2?

Which of the following is the correctly balanced chemical equation, including phases, for the reaction of aqueous Pb(ClO3)2 with aqueous NaI?

Which of the following is the correctly balanced chemical equation for the decomposition of dinitrogen trioxide (N2O3) into nitrogen gas and oxygen gas?

Which of the following chemical equations is balanced?