Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

10. Acids and Bases

Acid-Base Reactions

GOB Chemistry

10. Acids and Bases

Acid-Base Reactions

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Multiple Choice

Write a balanced chemical equation, include phases, for the following acid reaction:HBr reacting with Li₂O.

2 HBr(aq) + Li₂O(s) → H₂O(l) + 2 LiBr(aq)

2 HBr(aq) + Li₂O(s) → H₂(g) + 2 LiBrO(aq)

2 HBr(aq) + Li₂O(s) → 2 HO(aq) + 2 LiBr(aq)

HBr(aq) + Li₂O(aq) → H₂O(l) + 2 LiBr(s)

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Verified step by step guidance

Identify the reactants and products in the chemical reaction. The reactants are HBr and Li2O, and the products are H2O and LiBr.

Determine the phases of each compound: HBr is aqueous (aq), Li2O is solid (s), H2O is liquid (l), and LiBr is aqueous (aq).

Write the unbalanced chemical equation with the identified phases: HBr(aq) + Li2O(s) → H2O(l) + LiBr(aq).

Balance the chemical equation by ensuring the number of atoms of each element is the same on both sides. Start by balancing the lithium (Li) atoms: 2 HBr(aq) + Li2O(s) → H2O(l) + 2 LiBr(aq).

Check the balance of hydrogen (H) and bromine (Br) atoms. Ensure that the number of each type of atom is equal on both sides of the equation. The balanced equation is: 2 HBr(aq) + Li2O(s) → H2O(l) + 2 LiBr(aq).