Review: Acids, Bases and Salts

Which of these pH values represent an acid?

• 4

• 8

• 10

• 12

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

• True

• False

Which of the following are 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

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

• positive

• negative

Which of the following is a property of a base?

• bitter taste

• reacts with metals

• salty

• sour taste

Bases have many uses. They are mainly used to make

• cleaning products

• soaps

• concrete

• all of the answer choices

Which of the following pH values represents a base?

• 2.1

• 4.6

• 6.8

• 8.1

7 on the pH scale means that it is...

• Acidic
• Basic
• Neutral

Water is an example of  __________

• A base
• An acid
• A neutral substance

Drain cleaner has a pH of 13. What is drain cleaner?

• An acid.
• A strong base.
• Neutral.
• A weak base.