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 iron(III) chloride (FeCl3) and sodium hydroxide (NaOH)?

FeCl3 + NaOH → Fe(OH)3 + NaCl

FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl

FeCl3 + 2NaOH → Fe(OH)2 + 2NaCl

2FeCl3 + 3NaOH → 2Fe(OH)3 + 3NaCl

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Verified step by step guidance

Identify the reactants and products in the given chemical reaction: Iron(III) chloride (FeCl3) and sodium hydroxide (NaOH) are the reactants, while iron(III) hydroxide (Fe(OH)3) and sodium chloride (NaCl) are the products.

Write the unbalanced chemical equation: FeCl3 + NaOH → Fe(OH)3 + NaCl.

Balance the equation by ensuring the number of atoms of each element is the same on both sides. Start by balancing the iron (Fe) atoms: 1 Fe atom on both sides.

Next, balance the chlorine (Cl) atoms. There are 3 Cl atoms in FeCl3, so you need 3 NaCl on the product side: FeCl3 + NaOH → Fe(OH)3 + 3NaCl.

Finally, balance the sodium (Na) and hydroxide (OH) ions. Since there are 3 NaCl, you need 3 NaOH to provide 3 Na and 3 OH: FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl. Verify that all elements are balanced.