Acids and Bases

What is the pH scale used to measure?

• acidity or alkalinity

• density

• temperature

• weight

What is the pH of a neutral substance?

• 7

• 5

• 10

• 3

Give an example of a strong acid.

• Vinegar (acetic acid)

• Baking soda (sodium bicarbonate)

• Lemon juice (citric acid)

• Hydrochloric acid (HCl)

What is the chemical formula for hydrochloric acid?

• HCl

• H2O

• CO2

• NaCl

What is the chemical formula for sulfuric acid?

• H2O2

• NaCl

• SO3

• H2SO4

What is the chemical formula for nitric acid?

• H2O2

• NH3

• HNO3

• NO2

What is the chemical formula for acetic acid?

• H2O

• CH3COOH

• NaCl

• CO2

What is the chemical formula for sodium hydroxide?

• H2O

• NaCl

• NaOH

• CO2

What is the pH of a substance with a pH of 3?

• 3

• 5

• 10

• 7

What is the pH of a substance with a pH of 10?

• Neutral

• Basic

• Alkaline

• Acidic