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

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

General Chemistry

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

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Multiple Choice

What is the net ionic equation for the reaction between aqueous solutions of Li₂CO₃ and CaCl₂?

[Ca]²⁺ (aq) + [CO₃]^2– (aq) → CaCO₃ (s)

2[Li]⁺ (aq) + [CO₃]^2– (aq) → Li₂CO₃ (s)

2 [Li]⁺ (aq) + 2 [Cl]^– (aq) → 2 LiCl (aq)

[Li]⁺ (aq) + [Cl]^– (aq) → LiCl (aq)

Li₂CO₃ (aq) + CaCl₂ (aq) → 2 LiCl (aq) + CaCO₃ (s)

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Verified step by step guidance

Identify the reactants and products in the given chemical reaction. The reactants are Li2CO3 and CaCl2, both in aqueous solutions, and the products are LiCl and CaCO3.

Write the balanced molecular equation for the reaction: Li2CO3 (aq) + CaCl2 (aq) → 2 LiCl (aq) + CaCO3 (s).

Break down the aqueous compounds into their respective ions to write the complete ionic equation. Li2CO3 dissociates into 2 Li⁺ (aq) and CO3²⁻ (aq), and CaCl2 dissociates into Ca²⁺ (aq) and 2 Cl⁻ (aq).

Identify the spectator ions, which are ions that do not participate in the formation of the precipitate. In this case, Li⁺ and Cl⁻ are spectator ions as they remain in solution as LiCl (aq).

Write the net ionic equation by removing the spectator ions from the complete ionic equation. The net ionic equation is: Ca²⁺ (aq) + CO3²⁻ (aq) → CaCO3 (s).