Analytical Chemistry

A/An _______________ is made up of one or more of the same kind of atom chemically combined.

• atom

• element

• compound

• molecule

A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

• mixture

• pure substance

• compound

• element

A/an _____________ contains a variety of elements and compounds that are not chemically combined with each other.

• atom

• element

• compound

• mixture

True or False: elements and compounds are pure substances.

• True

• False

Which gas can be tested for using the squeaky pop test?

• Oxygen

• Chlorine

• Hydrogen

• Carbon Dioxide

Which gas can be tested for using a glowing splint?

• Oxygen

• Chlorine

• Hydrogen

• Carbon Dioxide

What do we look for as a test for chlorine?

• A squeaky pop

• Bleaching litmus paper

• Turning limewater cloudy

• Relighting a glowing splint?

What do we look for as a test for carbon dioxide?

• A squeaky pop

• Bleaching litmus paper

• Turning limewater cloudy

• Relighting a glowing splint?

Ink can be separated by a method of...

• distillation

• filtration

• chromatography

• sedimentation

Chromatography separates the mixture of dyes on the basis of their...

• density

• solubility

• gravity

• boiling point