Ch 3: Chemical Composition of Matter (Part 2)

Ch 3: Chemical Composition of Matter (Part 2)

Multiple Choice

A Calcium, iron and oxygen

B Oxygen, silver and carbon dioxide

C Iron oxide, carbon dioxide and water

D Carbon, water and air

Which group of substances contain an element, compound and a mixture?

• A

• B

• C

• D

Multiple Choice

A Calcium, iron and oxygen

B Oxygen, silver and carbon dioxide

C Iron oxide, carbon dioxide and water

D Carbon, water and air

Which group of substances contain only elements?

• A

• B

• C

• D

Multiple Choice

Which of the following word equations is correct?

• solute + solution --> solvent

• solute + solvent --> solution

• solute + solute --> solution

• solvent + solution --> solute

Multiple Choice

Which of the following pair of substances forms a solution with water?

• glass and carbon

• sugar and pepper

• plastic and sugar

• sugar and salt

Multiple Choice

The rate of dissolving of a solute depends on _______________.

I. size of solute particles

II. temperature of the solvent

III. volume of the solvent

• I and II

• I and III

• II and III

• all of the above

Multiple Choice

Which of the following will not increase the rate of dissolving of a solute in a solvent?

• heating the solvent before adding the solute

• shaking the beaker as the solute is added

• stirring the mixture

• using a solute of a larger size

Multiple Choice

The solubility of a solute depends on __________.

I. the nature of the solute

II. the rate of stirring

III. the nature of the solvent

• I and II

• I and III

• II and III

• all of the above

Multiple Choice

The rate of dissolving of a solute refers to ________________.

• how well a solute dissolves in a fixed volume of solvent

• how fast a solute dissolves in a fixed volume of solvent

Multiple Choice

A suspension is formed when ___________________.

• compounds chemically combine

• elements chemically combine

• substances dissolve in a liquid

• substances do not dissolve in a liquid

Multiple Select

Select substance(s) that will form a suspension with water?

• sugar

• salt

• bread crumbs

• sand

Multiple Choice

Mixtures can be classified into____________.

• metals and non-metals

• elements and compounds

• solutes and solvents

• solutions and suspensions