pH Analysis Vocabulary

A(n) ____________ is a water-soluble compound that donates protons (H+ ions) in a solution.

• acid

• base

Acids are often sour to the taste and can burn the skin.

• True

• False

Chemical formulas of acids usually begin with the letter H. An example would be HCl (hydrochloric acid). What does the H represent?

• helium

• hyrdogen

• water

Acidic substances have a pH value

• greater than 7

• less than 7

• 7

Alkaline substances have a pH

• less than 7

• greater than 7

• 7

A(n) ___________ is a water-soluble chemical compound that accepts protons.

• base

• acid

• neutral substance

Bases are bitter to the taste, have a slippery texture, and react with acids.

• True

• False

The chemical formula for bases usually ends with OH which stands for

• oxygen hydrate

• hydroxide

• hydroxygenate

A(n) _________________ is a substance that changes color when in contact with an acid or a base.

• indicator

• inquisition

• invocater

Neither acidic nor basic

• neutral

• neutron

• neuron