Multiple Choice
What are the correct coefficients to balance the chemical equation: C4H10S(l) + O2(g) → CO2(g) + H2O(g) + SO2(g)?
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3. Chemical Reactions
Balancing Chemical Equations
Multiple Choice
What is the balanced chemical equation for the reaction between NaCl(aq) and Hg2(C2H3O2)2(aq)?
A
NaCl(aq) + Hg2(C2H3O2)2(aq) → NaC2H3O2(aq) + HgCl2(s)
B
No reaction occurs
C
NaCl(aq) + Hg2(C2H3O2)2(aq) → Na2C2H3O2(aq) + Hg2Cl2(s)
D
2 NaCl(aq) + Hg2(C2H3O2)2(aq) → 2 NaC2H3O2(aq) + Hg2Cl2(s)
Verified step by step guidance1
Identify the reactants and products in the given chemical equation: Reactants are NaCl(aq) and Hg2(C2H3O2)2(aq), and the products are NaC2H3O2(aq) and Hg2Cl2(s).
Write the unbalanced chemical equation: NaCl(aq) + Hg2(C2H3O2)2(aq) → NaC2H3O2(aq) + Hg2Cl2(s).
Count the number of each type of atom on both sides of the equation to determine which elements need balancing. Initially, you have 1 Na, 1 Cl, 2 Hg, and 4 C2H3O2 on the reactant side, and 1 Na, 1 C2H3O2, 2 Hg, and 2 Cl on the product side.
Balance the equation by adjusting coefficients to ensure the same number of each type of atom on both sides. Start by balancing the acetate ions (C2H3O2) by placing a coefficient of 2 in front of NaC2H3O2 on the product side.
Finally, balance the sodium (Na) and chloride (Cl) ions by placing a coefficient of 2 in front of NaCl on the reactant side. The balanced equation is: 2 NaCl(aq) + Hg2(C2H3O2)2(aq) → 2 NaC2H3O2(aq) + Hg2Cl2(s).
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