Chemical Formulas

What is the name of this element?

• Helium
• Rubidium
• Hydrogen
• Mercury

Tags

NGSS.MS-PS1-1

A substance that cannot be separated into anything simpler simpler

• Element

• Compound

• Mixture

• Chemical

These contain only one kind of atom. 

• element 
• compound 
• mixture 
• water 

Tags

NGSS.MS-PS1-1

A compound is made of ________ atoms. 

• big 
• similar 
• different 

Tags

NGSS.MS-PS1-1

Carbon Dioxide is a ______

• compound

• element

• mixtures

• molecule

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O

• H₂

• NaCl

• CaCO₃

Tags

NGSS.MS-PS1-1

Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?

• Compound
• Element
• Mixture
• None of the Above

Tags

NGSS.MS-PS1-4

How many Oxygen atoms (O) are in a  molecule  of CO₂

• 1
• 2
• 3
• 0

Tags

NGSS.MS-PS1-1

More than two atoms stuck together is called a ...................

• element

• molecule

• compound

• mixture

Tags

NGSS.MS-PS1-1

A series of numbers and letters that are used to represent a molecule

• physcial property 
• chemical property 
• chemical formula 
• atom

Tags

NGSS.MS-PS1-1