Elements, Compounds, Mixtures

A substance that contains only one type of atom is a(n)

• compound
• element
• heterogeneous mixture
• homogeneous 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

A substance made up of two or more chemically combined elements is —

• an element

• mixture

• compound

• solution

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

• molecule

• mixture

• element

• compound

Two or more physically combined substances form —

• a compoud
• an acid
• an element
• a mixture

NaHCO₃ is an example of —

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

What is an example of a mixture?

• Table salt

• Water

• Oxygen

• Air

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

Tags

NGSS.MS-PS1-1