Elements, Compounds, Mixtures Test

A mixture that appears to be evenly mixed throughout:

• an atom
• a compound
• a homogeneous mixture
• a heterogeneous mixture

A pure substance...

• is an element or a compound
• is an element or a mixture
• is a compound or a mixture
• is a mixture

1 A substance made up of two or more chemically combinedelements is —

• an element
• mixture
• compound
• solution

 A substance that cannot be broken down into any other substance by ordinarychemical means is called —

• molecule
• mixture
• element
• compound

NaHCO₃ is an example of —

• an abbreviation
• a compound
• a mixture
• an element

A substance made of only one type of atom is called —

• an element
• a mixture
• a compound
• a salt

What is an example of an element?

• Oxygen
• Pure water
• Air
• Table salt

Two or more substances in the same place but NOT chemically combined or in a specific ratio is called —

• a compound 
• a pure substance
• an element
• a mixture

The smallest part of an element that retains the properties of the element is the

• nucleus.

• electron

• atom

• neutron

Which is the best example of a pure substance?

• pizza

• gold

• saltwater

• air