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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1:19 minutes

Problem 46c

Textbook Question

Complete and balance the equation for each of the following reactions:
c. H₂SO₄(aq) + Ca(OH)₂(s) →

Verified step by step guidance

Identify the type of reaction: This is a neutralization reaction where an acid (H₂SO₄) reacts with a base (Ca(OH)₂) to produce water (H₂O) and a salt.

Write the unbalanced equation:

H₂SO₄(aq) + Ca(OH)₂(s) → CaSO₄(s) + H₂O(l)

. Here, calcium sulfate (CaSO₄) is the salt formed.

Balance the sulfate ion (SO₄²⁻): There is one sulfate ion on both sides of the equation, so no adjustment is needed for this part.

Balance the hydrogen and oxygen atoms: The acid contributes 2 hydrogen atoms, and the base contributes 2 hydroxide ions (OH⁻). These combine to form 2 water molecules. Update the equation to:

H₂SO₄(aq) + Ca(OH)₂(s) → CaSO₄(s) + 2H₂O(l)

Verify the balance: Check that the number of each type of atom is the same on both sides of the equation. There are 1 calcium (Ca), 1 sulfate (SO₄²⁻), 2 hydrogen (H), and 2 oxygen (O) atoms on each side, confirming the equation is balanced.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Acid-Base Reactions

Acid-base reactions involve the transfer of protons (H⁺ ions) between reactants. In this case, sulfuric acid (H₂SO₄) acts as an acid, donating protons, while calcium hydroxide (Ca(OH)₂) serves as a base, accepting protons. The reaction typically results in the formation of water and a salt.

Balancing Chemical Equations

Balancing chemical equations is essential to ensure that the number of atoms of each element is the same on both sides of the equation. This reflects the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. Each coefficient in the balanced equation indicates the relative number of molecules or moles involved.

Products of Neutralization

In a neutralization reaction between an acid and a base, the typical products are water and a salt. For the reaction between H₂SO₄ and Ca(OH)₂, the salt formed is calcium sulfate (CaSO₄). Understanding the expected products helps in predicting the outcome of the reaction and in balancing the equation correctly.