Elements and Compounds

Water (H₂O), is not found on the periodic table because water is a...

• atom

• liquid

• mixture

• compound

Tags

NGSS.MS-PS1-1

This diagram represents a _____.

• pure substance that is a compound

• mixture of elements

• pure substance that is an element

• mixture of compounds

Tags

NGSS.MS-PS1-1

diagram "a" is an example of a(n)

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

Which of the following most accurately models the relationship between compounds and elements?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

Classify the picture with the correct label.

• Element

• Compound

• Mixture of Elements

• Mixture of Compounds

Tags

NGSS.MS-PS1-1

Compounds are different than elements because compounds are -

• A combination of two or more elements.

• 
  B)not able to be broken down into parts

• made from the same type of atoms
  

• a pure substance, elements are not
  

A section of the Periodic Table of Elements is provided. What is the chemical symbol for magnesium?

• Mn

• Magnesium

• Mg

• 12

Which of the following best represents an element?

• He

• LiF

• H₂O

• NaCl

The chemical equation shown below represents a reaction that produces fuel for certain cars. Which substance represented in this equation is classified as an element?

• CO

• H₂O

• CO₂

• H₂

Tags

NGSS.MS-PS1-1

How many different elements are involved in the reaction shown below?

• 3

• 4

• 7

• 12

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2