Science

Which of the following represents an element?

• H₂O

• H

• NaCl

• CaCO₃

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

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

Tags

NGSS.MS-PS1-5

What is made up two or more elements that are chemically combined?

• Element
• Mixture
• Compound
• Solids

An element is made up of only one kind of _____.

• orange

• plastic

• atom

• metal

Tags

NGSS.MS-PS1-1

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

• compounds
• atoms
• mixtures
• elements

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Is the following an element or compound: CaCO₃?

• Element

• Compound

• Both

• Neither

Tags

NGSS.MS-PS1-1

When two or more elements chemically combine

• element

• compound

• mixture

• solution

Tags

NGSS.MS-PS1-5

Compounds are represented by a...

• Capital Letter
• Chemical symbol 
• Chemical formula 
• Chlorine