Elements of Surprise 3 - compounds & gas tests

Which diagrams in the image represent a compound?

• A

• B

• C

• D

True or false?

A compound is a substance that contains more than 1 type of element joined together.

• True

• False

True or false?

A compound is formed when elements react together in a chemical reaction.

• True

• False

Compounds which contain only two elements always have names ending in....

• ide

• ite

• ate

• ium

Select all of the elements below that are in the compound potassium chloride

• Potassium

• Chromium

• Chlorine

• Oxygen

Select all of the elements below that are in the compound copper sulfate

• Sulfur

• Copper

• Sulfate

• Oxygen

What is the correct name for the compound formed from silver, nitrogen and oxygen

• Silver nitrogenate

• Silver nitride

• Nitrogen silvate

• Silver nitrate

What is the correct name for the compound formed from lithium and hydrogen?

• Lithium hydrate

• Hydrogen lithide

• Lithium hydride

• Lithium hydrite

How many atoms of hydrogen are in methane which has the formula CH₄?

• 0

• 1

• 2

• 4

What is the formula for hydrogen sulfide as shown in the picture?

• HS

• H₂S

• H₂S₂

• HS₂