Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart2h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

2. Cell Chemistry & Cell Components

Ionic Bonding

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Multiple Choice

The compound CaSO₄ ionizes into a calcium ion and a sulfate ion (SO₄). Calcium has two electrons in its outer shell. Upon ionization, what would you expect the charge on the sulfate ion to be?

–4

–1

–2

Verified step by step guidance

Understand that when CaSO4 ionizes, it separates into a calcium ion (Ca^2+) and a sulfate ion (SO4^2-).

Recognize that calcium (Ca) typically loses two electrons to achieve a stable electron configuration, resulting in a Ca^2+ ion.

Since the compound CaSO4 is neutral overall, the charges of the ions must balance each other out.

Given that the calcium ion has a charge of +2, the sulfate ion must have a charge that balances this out to maintain neutrality.

Conclude that the sulfate ion (SO4) must have a charge of -2 to balance the +2 charge of the calcium ion, resulting in a neutral compound.

Master Ions: Anions vs. Cations with a bite sized video explanation from Bruce Bryan

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Expert video explanations

The compound CaSO4 ionizes into a calcium ion and a sulfate ion (SO4). Calcium has two electrons in its outer shell. Upon ionization, what would you expect the charge on the sulfate ion to be?