Elements, Compounds and Mixtures

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Tags

NGSS.MS-PS1-1

Salt has a chemical formula of NaCl.  Salt is a...

• Compound
• Element
• Mixture
• None of the Above

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

Mixtures are separated through ___________changes.

• mixture
• compound
• physical

Tags

NGSS.MS-PS1-2

_____ small particles that make up most types of matter on Earth.

• compounds
• atoms
• mixtures
• elements

Tags

NGSS.MS-PS1-1

Can an element be broken down into a simpler substance 

• yes 
• No

compounds are chemically bounded together 

• False
• true
• I don't know?

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Are there any compounds on the periodic table 

• yes there are many 
• no because only elements are on the periodic table
• I think they are?

Tags

NGSS.MS-PS1-1

Which one has more than one type of atom in it

• Element
• Compound 

Tags

NGSS.MS-PS1-1