Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

3. Chemical Reactions

Balancing Chemical Equations

General Chemistry

3. Chemical Reactions

Balancing Chemical Equations

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Multiple Choice

What is the balanced chemical equation for the reaction between NaCl(aq) and Hg2(C2H3O2)2(aq)?

NaCl(aq) + Hg2(C2H3O2)2(aq) → NaC2H3O2(aq) + HgCl2(s)

No reaction occurs

NaCl(aq) + Hg2(C2H3O2)2(aq) → Na2C2H3O2(aq) + Hg2Cl2(s)

2 NaCl(aq) + Hg2(C2H3O2)2(aq) → 2 NaC2H3O2(aq) + Hg2Cl2(s)

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Verified step by step guidance

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).