Grade 10 Acids, Bases & pH Worksheet with Answers
Grade 10 (US) · Year 11 (UK) · Class 10 (India) · Chemistry
Unit 4: Solutions, Acids & GasesAcids & BasesNGSS HS-PS1-6
The pH scale, properties of acids and bases, neutralization and calculating pH. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Acids, Bases & pH
Grade 10 · Chemistry
Name
Class
Date
Learning goal: Acids & Bases · NGSS HS-PS1-6
Directions: Read each question carefully and write your answer on the line.
What is the pH of pure water?
Answer: 7 (neutral)
RememberThe pH scale
- 1
Acids release which ion in water?
- 2
What do an acid and a base make when they neutralize?
- 3
Bases release which ion in water?
- 4
A solution has [H⁺] = 1 × 10^-2 mol/L. What is its pH?
- 5
A solution has [H⁺] = 1 × 10^-11 mol/L. What is its pH?
- 6
What color does litmus paper turn in a base?
- 7
What color does litmus paper turn in an acid?
- 8
A solution has pH 8. What is [H⁺]?
- 9
Why do people take antacids for heartburn?
- 10
A solution has pH 10. What is [H⁺]?
- 11
How many times more acidic is pH 3 than pH 5?
- 12
A solution has pH 2. What is [H⁺]?
★ Challenge corner for fast finishers
Why does your breath make fog on a cold window?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/chemistry/10/acids_bases
Answer key — Acids, Bases & pH (Grade 10)
- 1.hydrogen ions (H⁺)
- 2.a salt and water
- 3.hydroxide ions (OH⁻)
- 4.2
- 5.11
- 6.blue
- 7.red
- 8.1 × 10^-8 mol/L
- 9.the base neutralizes excess stomach acid
- 10.1 × 10^-10 mol/L
- 11.100 times
- 12.1 × 10^-2 mol/L
- ★water vapor in your breath condenses on the cold glass
Answer key (click to show)
- 1.hydrogen ions (H⁺)
- 2.a salt and water
- 3.hydroxide ions (OH⁻)
- 4.2
- 5.11
- 6.blue
- 7.red
- 8.1 × 10^-8 mol/L
- 9.the base neutralizes excess stomach acid
- 10.1 × 10^-10 mol/L
- 11.100 times
- 12.1 × 10^-2 mol/L
- ★water vapor in your breath condenses on the cold glass (challenge corner)
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