Reviewer M.2/1

Who is Thomas Graham?

• a. Australian scientist

• b. French scientist

• c. Scottish scientist

• d. American scientist

A __________ charged ion formed from a hydrogen atom.

• a. negative

• b. positive

• c. equal

• d. changed

What is the main component of stomach Acid?

• a. Hydrochloric acid

• b. Citric acid

• c. Sodium hydroxide

• d. Solution

pH scale of our stomach.

• a. pH 3

• b. pH 2

• c. pH 1

• d. pH 5

The blending of two or more substances.

• a. energy

• b. mixture

• c. water

• d. substance

Alloy are the combination of two or more __________ together to form a new substance with different properties.

• a. plastics

• b. stainless steel

• c. metals

• d. ceramics

The red and blue paper strips.

• a. A4 paper

• b. Colored paper

• c. News paper

• d. Litmus paper

Substance that tastes sour.

• a. acid

• b. hydrogen ion

• c. hydroxide ion

• d. base

Substance that tastes bitter.

• a. acid

• b. hydrogen ion

• c. hydroxide ion

• d. base

The combination of rain water.

• a. typhoon

• b. rainfall

• c. acid rain

• d. flood