Table of contents

1. Intro to General Chemistry3h 46m
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 51m
7. Gases3h 52m
8. Thermochemistry2h 38m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 10m
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 34m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

6. Chemical Quantities & Aqueous Reactions

Complete Ionic Equations

General Chemistry

6. Chemical Quantities & Aqueous Reactions

Complete Ionic Equations

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Multiple Choice

Which of the following reagents could be used to separate the two anions from a solution containing magnesium nitrate and cesium hydroxide?

NH₄CN

NaCl

KNO₃

ZnBr₂

CsBrO₃

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Verified step by step guidance

Identify the anions present in the solution. Magnesium nitrate (Mg(NO3)2) contains the nitrate ion (NO3^-), and cesium hydroxide (CsOH) contains the hydroxide ion (OH^-).

Consider the solubility rules for common ionic compounds. Nitrates (NO3^-) are generally soluble in water, while hydroxides (OH^-) are often insoluble, except for those of alkali metals and some alkaline earth metals.

Evaluate the potential reactions of each reagent with the anions. The goal is to find a reagent that will form an insoluble compound with one of the anions, allowing for separation.

Examine the given reagents: NH4CN, NaCl, KNO3, ZnBr2, and CsBrO3. Consider the solubility of potential products formed with NO3^- and OH^-.

Determine that ZnBr2 can react with OH^- to form Zn(OH)2, which is insoluble in water, thus allowing the separation of OH^- from NO3^- in the solution.