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

3. Chemical Reactions

Naming Ionic Compounds

General Chemistry

3. Chemical Reactions

Naming Ionic Compounds

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Multiple Choice

Which of the following is the correct chemical formula for potassium hydrogen carbonate?

KHCO_3

KHC_2O_4

K_2HCO_3

K_2CO_3

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Verified step by step guidance

Understand the name of the compound: 'potassium hydrogen carbonate' indicates it is a salt containing potassium (K), hydrogen (H), carbon (C), and oxygen (O). The term 'hydrogen carbonate' refers to the bicarbonate ion, which has the formula HCO_3^-.

Recall the charge of the ions involved: potassium ion (K^+) has a +1 charge, and the hydrogen carbonate (bicarbonate) ion (HCO_3^-) has a -1 charge.

Since the charges are +1 and -1, they balance in a 1:1 ratio, so the formula of the compound is simply the combination of one potassium ion and one hydrogen carbonate ion.

Write the chemical formula by placing the potassium symbol (K) followed by the hydrogen carbonate ion (HCO_3) without any additional subscripts, resulting in KHCO_3.

Verify that the formula matches the name: potassium (K) combined with hydrogen carbonate (HCO_3) gives potassium hydrogen carbonate, confirming KHCO_3 is the correct formula.