Chemical Formulas Practice

What does the subscript in a chemical formula tell you?

• How many molecules are present

• How many atoms are present

• How many elements are present

• How many neutrons are present

Tags

NGSS.MS-PS1-1

What is the correct chemical formula for the compound pictured?

• H₂

• H₂O

• O₂

• H₂O₂

Tags

NGSS.MS-PS1-1

Lists the "ingredients" of a molecule or compound-- the chemical symbols and numbers of atoms present.

• chemical symbol

• coefficient

• subscript

• chemical formula

Tags

NGSS.MS-PS1-1

The basic unit of an element is called ___

• atom

• element

• proton

• product

Tags

NGSS.MS-PS1-1

____ is a substance that can't be broken down. It's made of one kind of atom.

• atom

• element

• mixture

• product

Which of the models best represents CaCO₃?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

What molecule is shown?

• CO₂

• NH₄

• H₂O

• O₂H

Tags

NGSS.MS-PS1-1

What molecule is shown?

• NH₄

• N₁H₄

• N₁H₃

• NH₃

Tags

NGSS.MS-PS1-1

Which formulas below have coefficients of 4? Check all that apply.

Tags

NGSS.MS-PS1-1

Which chemical formula below matches the image shown here?

Tags

NGSS.MS-PS1-1