LAB grade - Elements and Compounds

How many elements are in the chemical formula: Ca₂CO₃

• 5 elements

• 2 elements

• 3 elements

• 4 elements

Tags

NGSS.MS-PS1-1

How many elements are in the chemical formula: Al₂O₃

• 5

• 3

• 2

• 4

Tags

NGSS.MS-PS1-1

True or false? A compound is composed of two or more different elements.

• True

• False

Al is an element.

• True

• False

Tags

NGSS.MS-PS1-1

Which of the following matches the molecule shown?

• Cl₂

• Cl₃

Tags

NGSS.MS-PS1-1

Select the true statement.

• This is a compound because there is more than one element pictured.

• This is an element because there is only one element.

Tags

NGSS.MS-PS1-1

Select the true statement below.

• This is a compound.

• This is an element.

Tags

NGSS.MS-PS1-1

Select the chemical formula for the compound displayed.

•  $C_2O$  

•  $CO_2$  

•  $C_2O_2$  

•  $CO$  

Tags

NGSS.MS-PS1-1

Select the chemical formula.

• C₄H₄

• CH₄

• C₄H

• CH

Tags

NGSS.MS-PS1-1

True or false? No subscript means there's only one atom.

• True

• False

Tags

NGSS.MS-PS1-1