3. Chemical Reactions

Which of the following chemical equations is correctly balanced?

Consider the chemical equation: 2H_2 + O_2 ightarrow 2H_2O. How many reactants are involved in this reaction, and how many products are created?

In the context of solutions, which of the following best describes the term 'solvent'?

Which of the following chemical equations is NOT balanced?

In the chemical reaction 2H_2 + O_2 ightarrow 2H_2O, what is (are) the starting material(s)?

Which of the following is the correct balanced equation for the reaction: MnO4^-(aq) + Br^-(aq) → MnO2(s) + BrO3^-(aq)?

NH3 + O2 → NO + H2O. Which of the following is the balanced form of the above unbalanced equation?

Which additional product balances the following chemical reaction? 2 C2H2 (g) + 5 O2 (g) → 4 CO2 (g) + _______

Which of the following equations is correctly balanced for the reaction of hydrogen and oxygen to form water?

Which symbol in a chemical equation separates the reactants from the products?

If 4 atoms of hydrogen react with 2 atoms of oxygen, which balanced chemical equation correctly represents the reaction?

Which of the following is the correctly balanced equation for the reaction of MnO4^- with Fe^2+ in acidic conditions?

Which of the following is the correctly balanced chemical equation for the combustion of glucose (C6H12O6)?

Why should you not change the subscripts in chemical formulas when balancing chemical equations?

Which of the following chemical equations is balanced correctly?