Acids and Bases Daily Life

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator
• neutralizer
• corrosive
• electricity

Tags

NGSS.MS-PS1-2

What methods can you use to measure the pH of a solution?

• Observing color or clarity
• Measuring mass or volume
• Measuring density or electrical conductivity
• Using acid base-indicators or pH meters

True or false: a neutral solution has equal amounts of H⁺ and OH^-.

• True

• False

According to the pH scale, which item is more acidic than lemons?

• battery

• vinegar

• milk

• blood

According to the pH scale, which item is a stronger base than soap?

• baking soda

• ammonia solution

• tomato

• bleach

When Paulo tested an unknown substance, his red litmus paper turned blue but his blue litmus paper did not change color. What is the solution?

• Acid

• Base

• neutral

• world peace

Zahara has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.

The substance in the beaker

• is a base.

• has a neutral pH.

• is an acid.

• does not have a pH.

Which of the following is NOT a characteristic of an acid?

• sour taste
• corrosive
• it feels slippery
• it can burn the skin

Reacts with metals

• acid

• base

• both acid and base

Tags

NGSS.MS-PS1-2

Taste bitter

• acids

• bases

• neutral

• pH paper