Subscripts and Coefficients

To balance an equation you should:

• ONLY change subscripts.

• ONLY change coefficients.

• Change BOTH subscripts and coefficients.

How many Nitrogen (N) atoms are in 4NH₃?

• 4

• 1

• 3

• 12

Tags

NGSS.MS-PS1-1

How many Hydrogen (H) atoms are in 4NH₃?

• 4

• 1

• 3

• 12

Tags

NGSS.MS-PS1-1

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is this equation balanced?

• yes

• no

• Not enough information

Tags

NGSS.MS-PS1-5

How many total molecules is 4NH₃?

• 4

• 1

• 3

• 12

Tags

NGSS.MS-PS1-1

What does the subscript in a chemical formula represent?

• The number of molecules

• The number of atoms of an element in a molecule

• The charge of the molecule

• The total mass of the molecule

• Two molecules of hydrogen gas

• Two atoms of hydrogen

• Two grams of hydrogen

• Two moles of hydrogen

Tags

NGSS.MS-PS1-5

Which of the following statements is true about coefficients in a balanced chemical equation?

• They indicate the number of atoms of each element

• They indicate the number of molecules or moles of a substance

• They indicate the mass of each substance

• They indicate the charge of each substance

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5