elements, compounds, spheres and graphs quiz

Which of the following is not a compound?

• HCl

• Cl

• NaCl

• CO2

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

A(n) ​ (a)   cannot be broken down into a smaller substance

• element
• compound
• mixture
• symbol

A ​ (a)   is a pure substance that is comprised of 2 or more elements chemically combined.

• compound
• element
• mixture
• formula

This picture represents which of the following?

• element
• compound
• mixture

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element
• compound
• mixture

Tags

NGSS.MS-PS1-1

This image portrays which of the following.

• element

• mixture

• compound

Tags

NGSS.MS-PS1-1

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

What element is found in all four areas of the earth (lithosphere or solid earth), biosphere (all living matter on earth), hydrosphere (all water on earth), and atmosphere (the sphere of gases surrounding our earth)?

• Sodium (Na)

• Oxygen (O)

• Carbon (C)

• Nitrogen (N)

What is the most abundant element found in the earth's atmosphere?

• Oxygen
• Sulfur
• Nitrogen
• Argon