
Unit 1 & 2 review 8.6ABCDE
Authored by Mr. CASTILLO
Science
8th Grade
NGSS covered
Used 2+ times

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80 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following best describes the pH scale?
A scale used to measure the toxicity of solutions.
A scale used to measure the level of acids or bases in solutions.
A scale used to measure the density of solutions.
A scale used to measure the conductivity of solutions.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following would be considered a very weak acid?
A solution with a pH of 3.
A solution with a pH of 9.
A solution with a pH of 11.5.
A solution with a pH of 6.5.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following correctly describes the values on the pH scale?
A pH of 0-6 represents an acid and a pH of 8-14 represents a base, with 7 being neutral.
A pH of 0-6 represents a base and a pH of 8-14 represents an acid, with 7 being neutral.
A pH of 0-6 represents an acid and a pH of 8-14 represents a base.
A pH of 0-7 represents a base and a pH of 8-14 represents an acid.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How much stronger or weaker do acids or bases of solutions become as you move from one value to the next on the pH scale?
1 time
5 times
10 times
20 times
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
True or False: The lower the pH of a substance, the stronger of a base it represents.
True
False
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A liquid with a pH of 7, like water, is considered ____________________.
neutral
acidic
basic
alkaline
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A solution with a higher concentration of hydrogen ions (H+) and a pH less than 7 is known as a(n) ____________________.
acid
base
neutral solution
alkaline solution
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