Acids and Bases Quiz

Which of the following substances are acids/bases?

• Water

• Vinegar

• Baking Soda

• Salt

How are all acids/bases similar?

• They all taste sour.

• They all turn litmus paper red.

• They all conduct electricity.

• They all react with metals.

Which characteristics of a substance will help you predict whether the substance is an acid or base?

• Color change

• pH level

• Texture

• Smell

Write a substance is considered neutral?

Water is considered a neutral substance because:

• It has a pH of 7

• It is a universal solvent

• It is essential for life

• It is a liquid at room temperature

What happens to the pH level of acids and bases when they are diluted?

• The pH level of acids increases and the pH level of bases decreases.

• The pH level of acids decreases and the pH level of bases increases.

• The pH level of both acids and bases remains the same.

• The pH level of both acids and bases increases.

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

What element do all acids contain?

• H
• O
• C
• He

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

• 3
• 9
• 7
• 5

pH is the measure of the concentration of ______.

• Acids

• H+ ion

• OH- ion

• Bases