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

2. Atoms & Elements

Ions

General Chemistry

2. Atoms & Elements

Ions

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Multiple Choice

What are the two ions that water molecules can dissociate into?

Calcium ion (Ca2+) and carbonate ion (CO3 2-)

Hydrogen ion (H+) and hydroxide ion (OH-)

Ammonium ion (NH4+) and nitrate ion (NO3-)

Sodium ion (Na+) and chloride ion (Cl-)

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Verified step by step guidance

Begin by understanding the concept of water dissociation. Water (H₂O) can dissociate into ions, which is a fundamental property of water.

Recognize that water dissociates into hydrogen ions and hydroxide ions. The chemical equation for this dissociation is:

H_{2} O \to H_{+} + {OH}_{-}

Understand that the hydrogen ion (H⁺) is often referred to as a proton, and the hydroxide ion (OH⁻) is a negatively charged ion.

Consider the options given in the problem. Calcium ion (Ca²⁺) and carbonate ion (CO₃²⁻), ammonium ion (NH₄⁺) and nitrate ion (NO₃⁻), sodium ion (Na⁺) and chloride ion (Cl⁻) are not products of water dissociation.

Conclude that the correct ions resulting from the dissociation of water are hydrogen ion (H⁺) and hydroxide ion (OH⁻), as per the chemical equation provided.