Compounds, Elements, and Mixtures

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

Tags

NGSS.MS-PS1-1

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

• molecule
• mixture
• element
• compound

 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

Tags

NGSS.MS-PS1-1

What is an example of a mixture?

• Table salt
• Salt water
• Oxygen
• Air

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

Which substance is a compound?

• copper

• magnesium

• saltwater

• water

Tags

NGSS.MS-PS1-1