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Eighth Grade (Grade 8) Acids and Bases Questions

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Grade 8 Acids and Bases
The table shows the pH of four substances.
pH Values
SubstancepH
Blood7.3
Orange Juice4.0
Ammonia11.0
Milk6.5

Which lists the substances from least to most acidic?
  1. ammonia, blood, milk, orange juice
  2. orange juice, milk, blood, ammonia
  3. ammonia, milk, blood, orange juice
  4. orange juice, blood, milk, ammonia
Grade 8 Acids and Bases
Which of the following are examples of acids?
  1. vinegar
  2. ammonia
  3. vitamin c
  4. alcohol
  5. oranges
  6. car batteries
  7. baking soda
  8. blood
Grade 8 Acids and Bases
A solution at pH 11.5 is
  1. acidic
  2. basic
  3. neutral
  4. none of the above
Grade 8 Acids and Bases
Grade 8 Acids and Bases
Which set of substances listed is correctly sequenced from most to least acidic?
  1. pH = 3, pH = 2, pH = 9
  2. pH = 7, pH = 8, pH = 9
  3. pH = 1, pH = 3, pH = 6
  4. pH = 8, pH = 10, pH = 14
Grade 8 Acids and Bases
Grade 8 Acids and Bases
Grade 8 Acids and Bases
Which of the following are examples of bases?
  1. soap
  2. vinegar
  3. blood
  4. alkaline batteries
  5. baking soda
  6. tums
  7. alcohol
  8. ammonia
Grade 8 Acids and Bases
Grade 8 Acids and Bases
Grade 8 Acids and Bases
Grade 8 Acids and Bases
Grade 8 Acids and Bases
If a soil is too acidic, what should the farmer add?
  1. Compost
  2. Lime
  3. Water
  4. Battery acid
  5. A garden table
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