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

Previous problemNext problem

Struggling with GOB Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Write a balanced chemical equation, include phases, for the following acid reaction:HClO₃ reacting with Zn metal.

HClO₃(aq) + Zn(l) → ZnClO₃(aq) + H(g)

2 HClO₃(aq) + Zn(l) → Zn(ClO₃)₂(aq) + 2 H(g)

2 HClO₃(aq) + 2 Zn(s) → 2 ZnClO₃(aq) + H₂(g)

2 HClO₃(aq) + Zn(s) → Zn(ClO₃)2(aq) + H₂(g)

Previous problemNext problem

Verified step by step guidance

Identify the reactants and products in the given chemical reaction. The reactants are HClO3 (chloric acid) and Zn (zinc metal), and the products are Zn(ClO3)2 (zinc chlorate) and H2 (hydrogen gas).

Write the unbalanced chemical equation using the chemical formulas and phases: HClO3(aq) + Zn(s) → Zn(ClO3)2(aq) + H2(g).

Balance the equation by ensuring the number of atoms of each element is the same on both sides. Start by balancing the chlorine atoms. Since there are two chlorine atoms in Zn(ClO3)2, you need two HClO3 molecules on the reactant side.

Next, balance the hydrogen atoms. There are two hydrogen atoms in two HClO3 molecules, which matches the two hydrogen atoms in one H2 molecule on the product side.

Finally, check the balance of zinc atoms. There is one zinc atom on both sides of the equation. The balanced chemical equation is: 2 HClO3(aq) + Zn(s) → Zn(ClO3)2(aq) + H2(g).