Acids/Bases Review

Which of the following correctly describes an ACID?

• feels slippery

• contains a hydroxide ion(OH^-)

• has a bitter taste

• forms hydrogen ions when dissolved in water (H⁺)

Which of the following correctly describes a BASE?

• tastes sour

• feels slippery

• formula starts with H

• forms hydrogen ions when dissolved in water

What happens when an acid and a base are mixed together?

• they explode

• nothing will happen

• a salt & water are formed

• a weaker base & stronger acid are formed

If a piece of litmus paper is exposed to an ACID, what color will it be?

• red

• blue

• white

• yellow

If a piece of litmus paper is exposed to a BASE, what color will it be?

• red

• blue

• white

• yellow

If a solution has a pH scale of 9, the solution is

• acidic

• alkaline

• neutral

• saturated

Which is a likely use for a base?

• as a vitamin in your food

• etching metals for printing

• making foods taste sour

• making soaps and detergents

Acids are what range on the pH scale?

• 0-14
• 0-6.99
• 7
• 7.1-14

Bases are what range on the pH scale?

• 0-6.99
• 7
• 7.1-14
• 0-14

When something is a strong base, it means there are a high concentration of

• Hydroniums ions

• Hydroxide ions

• Water molecules

• Hydrogen atoms