Acids and Bases

Front

Which of these pH values represent an acid? Options: 4, 8, 10, 12

Back

4

Front

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

Back

6.5

Front

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

Back

True

Front

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

Back

False

Front

Properties of acids:

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

Back

All of the answer choices are correct

Front

Which of the following is an acid?

vinegar

,

bleach

,

sugar in water

,

starch in water

,

toothpaste in water

Back

vinegar

Front

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

Back

positive

Front

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

Back

concentration

Front

Property of a base?

Back

bitter taste

Front

Which of the following pH values represents a base?

2.1

,

4.6

,

6.8

,

8.1

Back

8.1