compounds, mixtures, and elements

A pure substance that cannot be separated into simpler substances by chemical or physical means.  

• Element
• Compound
• Mixture
• Chemical

These contain only one kind of atom. 

• element 
• compound 
• mixture 
• water 

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Carbon Dioxide is a ______ 

• compound 
• element 
• mixtures 
• Battle of Bunker Hill 

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element
• compound
• mixture of elements
• mixture of compounds

Tags

NGSS.MS-PS1-1

Which of the following would be an example of a chemical formula:

• C6H12O6
• F= ma
• 2 H2 + O2 -> 2 H2O
• 6.02 x 10 23

Tags

NGSS.MS-PS1-1

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

What cannot be broken down into other substances?

• Compound
• Mixture
• Solids
• Element

A combination of substances that are not chemically combined is called a(n)____________. 

• mixture
• compound
• physical

Salt is a(n)

• element
• compound
• mixture

Tags

NGSS.MS-PS1-1