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Sixth Grade (Grade 6) Acids and Bases Questions

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Grade 6 Acids and Bases
What is a base?
  1. Any compound that increases the number of hydronium ions when dissolved in water
  2. Something that has a pH value greater than 7
  3. Something that has a pH value less than 7
  4. Any compound that increases the number of hydrogen ions when dissolved in water
Grade 6 Acids and Bases
Grade 6 Acids and Bases
On the pH scale, where can you find strong acids and strong bases?
  1. In the middle of the pH scale
  2. On the right side of the pH scale
  3. On the left side of the pH scale
  4. On either end of the pH scale
Grade 6 Acids and Bases
What does pH stand for?
  1. Properties of Hydrogen
  2. Properties of Hydroxide
  3. Power of Hydrogen
  4. Power of Hydroxide
Grade 6 Acids and Bases
What happens when an acid and a base come in contact with each other? (Choose as many correct answers as are applicable)
  1. The pH level increases for both the acid and the base
  2. They create a chemical reaction
  3. They neutralize each other
  4. The properties of each substance change
Grade 6 Acids and Bases
What is the main difference between acids and bases?
  1. The way they react to chemical changes
  2. The pH
  3. The way they react to physical changes
  4. The taste
Grade 6 Acids and Bases
Why is water considered to be neutral?
  1. Because the concentration of hydrogen ions is more than the concentration of hydroxide ions
  2. Because the concentration of hydrogen ions is exactly equal to the concentration of hydroxide ions
  3. Because the concentration of hydrogen ions is less than the concentration of hydroxide ions
  4. Because water does not have any hydroxide ions
Grade 6 Acids and Bases
Grade 6 Acids and Bases
Grade 6 Acids and Bases
What does litmus paper do?
  1. creates a synthesis reaction
  2. determines if a solution is basic or acidic
  3. determines if a compound is metal or nonmetal
  4. determines the amount of hydroxide in a solution
Grade 6 Acids and Bases
Grade 6 Acids and Bases
Is a liquid with a pH of 10 is
  1. a base
  2. an acid
  3. neutral
  4. none of the above
Grade 6 Acids and Bases
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