Can turn litmus paper a different color

• Acid
• Base
• Both acid and base
• Neither acid nor base

Contains more hydrogen ions than hydroxide ions

• Acid
• Base
• Both acid and base
• Neither acid nor base

Contains equal numbers of hydrogen and hydroxide ions

• Acid
• Base
• Both acid and base
• Neither acid nor base

Feels slippery

• Acid
• Base
• Both acid and base
• Neither acid nor base

Tastes sour

• Acid
• Base
• Both acid and base
• Neither acid nor base

Tastes bitter

• Acid
• Base
• Both acid and base
• Neither acid nor base

Reacts with carbonates

• Acid
• Base
• Both acid and base
• Neither acid nor base

Has a pH less than 7

• Acid
• Base
• Both acid and base
• Neither acid nor base

What type of compound is sodium hydroxide?

• acid
• base
• element
• Salt

Look at the following reaction: NH₃ + H₂O ↔ NH₄⁺ + OH⁻. Why is ammonia (NH₃) a Brøntsted-Lowry base?

• It is a hydrogen ion acceptor.
• It is a hydrogen ion donor.
• It contains hydrogen ions.
• It contains hydroxide ions.