3. Chemical Reactions

What coefficients would balance the following chemical equation? Fe + O_2 → Fe_2O_3

What is the correct coefficient for O_2(g) when balancing the following chemical equation? 2C_4H_{10}(g) + O_2(g) → 8CO_2(g) + 10H_2O(g)

In a balanced chemical equation, where are the coefficients placed?

Which of the following represents the correct products of the reaction: AgNO3 (aq) + KCl (aq) → ?

Consider the balanced chemical equation: PCl3 + Cl2 → PCl5. What is the mole ratio of PCl3 to PCl5 in this reaction?

Which of the following is the correctly balanced chemical equation for the reaction between CCl4 and Br2 to produce CBr4 and Cl2?

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

Which set of coefficients correctly balances the chemical equation: __C_2H_6 + __O_2 → __CO_2 + __H_2O?

Which chemical symbols will complete the equation for the decomposition reaction: 2H_2O_2 → ___ + ___?

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

In a balanced chemical equation, what does the coefficient in front of a chemical formula indicate?

Which of the following is the correctly balanced chemical equation for the reaction: Ag(s) + CN⁻(aq) + O₂(g) → Ag(CN)₂⁻(aq)?

Which of the following is the correctly balanced chemical equation for the reaction of KOH and H2SO4?

In the balanced chemical equation Fe + H_2O → FeO + H_2, how many atoms of hydrogen are present on the product side?