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

According to solubility rules, are alkaline earth metal hydroxides (such as Ca(OH)_2 and Sr(OH)_2) considered very water-soluble?

Yes, but only magnesium hydroxide (Mg(OH)_2) is very soluble.

No, most alkaline earth metal hydroxides are only slightly soluble in water.

No, alkaline earth metal hydroxides are completely insoluble in water.

Yes, all alkaline earth metal hydroxides are highly soluble in water.

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Verified step by step guidance

Recall the general solubility rules for hydroxides: hydroxides of alkali metals (Group 1) are generally soluble, while hydroxides of alkaline earth metals (Group 2) vary in solubility.

Understand that solubility of alkaline earth metal hydroxides increases down the group; for example, Mg(OH)\_2 is sparingly soluble, while Ca(OH)\_2 and Sr(OH)\_2 are more soluble but not highly soluble like alkali metal hydroxides.

Recognize that 'very soluble' means the compound dissolves readily in water to form a concentrated solution, which is not the case for most alkaline earth hydroxides except some like Ca(OH)\_2 that are moderately soluble.

Use this knowledge to evaluate the options: magnesium hydroxide is only slightly soluble, calcium and strontium hydroxides are somewhat soluble but not 'very soluble', and others like barium hydroxide are more soluble but still not as soluble as alkali metal hydroxides.

Conclude that the correct understanding is that most alkaline earth metal hydroxides are only slightly soluble in water, with some exceptions showing moderate solubility.