Acids and Bases Worksheet
Explore the fundamental concepts of acids and bases, pH scale, properties, and neutralization reactions for Grade 9 Science.
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Acids and Bases: Grade 9 Chemistry
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following pH values indicates a strong acid?
pH 8
pH 14
pH 2
pH 7
2. What is produced when an acid reacts with a base in a neutralization reaction?
Only water
Only salt
Salt and water
Acid and base
1. Acids have a sour taste and turn blue litmus paper .
2. Bases feel and turn red litmus paper blue.
3. A substance with a pH of 7 is considered .
1. All acids are corrosive.
True
False
2. A strong base completely dissociates in water.
True
False
1. Explain the difference between a strong acid and a weak acid.
2. Describe how the pH scale is used to classify substances as acidic, basic, or neutral.
Observe the pH scale below and answer the following questions.
1. What is the approximate pH of human blood?
2. Is lemon juice acidic or basic? Justify your answer using the pH scale.