Acids and Bases
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20 QuestionsShow answers
  • Question 1
    20 seconds
    Q.

    Which of these pH values represent an acid?

    answer choices

    4

    8

    10

    12

  • Question 2
    30 seconds
    Q.

    If I add more chicken soup to this setup, what will happen to the pH?

    answer choices

    It will increase and get closer to 7

    It will decrease and get closer to 0

    It will stay the same and not change

  • Question 3
    30 seconds
    Q.

    If I add more water to this setup, what will happen to the pH?

    answer choices

    It will increase and get closer to 7

    It will decrease and get closert to 0

    It will stay the same and not change

  • Question 4
    20 seconds
    Q.

    Milk is a very weak acid. What might its pH value be?

    answer choices

    6.5

    7.8

    4.2

    12.2

  • Question 5
    20 seconds
    Q.

    When acids react with metals, they produce hydrogen gas and salt.

    answer choices

    True

    False

  • Question 6
    20 seconds
    Q.

    When an acid is dissolved in water, it turns red litmus paper blue.

    answer choices

    True

    False

  • Question 7
    30 seconds
    Q.

    Which of the following are properties of acids?

    answer choices

    They conduct electricity when dissolved in water

    They taste sour

    They react with metals to produce hydrogen gas

    All of the answer choices are correct

  • Question 8
    20 seconds
    Q.

    Which of the following is an acid?

    answer choices

    vinegar

    bleach

    sugar in water

    starch in water

    toothpaste in water

  • Question 9
    20 seconds
    Q.

    An acid is a solution that contains __________ ions dissolved in water.

    answer choices

    positive

    negative

  • Question 10
    30 seconds
    Q.

    The pH value of an acid represents its __________ of positive ions in the solution

    answer choices

    amount

    concentration

    color

    charge

  • Question 11
    30 seconds
    Q.

    Which of the following is a property of a base?

    answer choices

    bitter taste

    reacts with metals

    salty

    sour taste

  • Question 12
    30 seconds
    Q.

    Bases have many uses. They are mainly used to make

    answer choices

    cleaning products

    soaps

    concrete

    all of the answer choices

  • Question 13
    30 seconds
    Q.

    The higher the concentration of negative (hydroxide) ions in the solution, the stronger the base is.

    answer choices

    True

    False

  • Question 14
    30 seconds
    Q.

    All bases have a sour taste.

    answer choices

    True

    False

  • Question 15
    30 seconds
    Q.

    Which of the following pH values represents a base?

    answer choices

    2.1

    4.6

    6.8

    8.1

  • Question 16
    30 seconds
    Q.

    The strongest bases have pH values close to

    answer choices

    0

    14

    7

    5

  • Question 17
    30 seconds
    Q.

    Which of the following is a base?

    answer choices

    baking soda in water

    orange juice

    vinegar

    lemonade

  • Question 18
    30 seconds
    Q.

    Ocean water is only slightly basic. What might its pH value be?

    answer choices

    5

    8

    12

    2

  • Question 19
    30 seconds
    Q.

    Bases turn blue litmus paper red.

    answer choices

    True

    False

  • Question 20
    20 seconds
    Q.

    If the substance is neutral, what would the pH be?11

    answer choices

    3

    5

    7

    9

    11

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