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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

Which of the following is the correct balanced chemical equation for the reaction between CH3NH3Cl(aq) and NaOH(aq)?

CH3NH3Cl(aq) + NaOH(aq) -> CH3NH2(aq) + NaCl(aq) + H2O(l)

2CH3NH3Cl(aq) + NaOH(aq) -> 2CH3NH2(aq) + NaCl(aq) + H2O(l)

CH3NH3Cl(aq) + NaOH(aq) -> CH3NH3OH(aq) + NaCl(aq)

CH3NH3Cl(aq) + 2NaOH(aq) -> CH3NH2(aq) + 2NaCl(aq) + 2H2O(l)

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Verified step by step guidance

Identify the reactants and products in the chemical reaction. The reactants are CH3NH3Cl(aq) and NaOH(aq), and the products are CH3NH2(aq), NaCl(aq), and H2O(l).

Write the unbalanced chemical equation: CH3NH3Cl(aq) + NaOH(aq) -> CH3NH2(aq) + NaCl(aq) + H2O(l).

Count the number of each type of atom on both sides of the equation to ensure they are equal. This includes carbon (C), hydrogen (H), nitrogen (N), chlorine (Cl), sodium (Na), and oxygen (O).

Check the charges on both sides of the equation to ensure they are balanced. In this case, all species are neutral, so the charges are inherently balanced.

Verify that the equation is balanced by confirming that the number of each type of atom and the charges are the same on both sides. If they are, the equation is balanced as written.