Balancing Chemical Equations

What does the number ₃ represent in 4NH₃?

• Subscript

• Superscript

• Coefficient

Tags

NGSS.MS-PS1-1

What does the number 4 represent in 4NH₃?

• Subscript

• Superscript

• Coefficient

Tags

NGSS.MS-PS1-5

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

• 4

• 1

• 3

• 12

Tags

NGSS.MS-PS1-1

In the equation shown, what are the reactant(s)?

• N₂ + H₂

• NH₃

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the equation shown, what are the product(s)?

• N₂ + H₂

• NH₃

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

To balance an equation you should:

• ONLY change subscripts.

• ONLY change coefficients.

• Change BOTH subscripts and coefficients.

Tags

NGSS.MS-PS1-5

Which reactant is missing from the equation shown?

(What should go in the place of the "X"?)

• One hydrogen atom.

• Three hydrogen atoms.

• Four oxygen atoms.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The law of conservation of mass says substances can neither be _______ nor ___________.

• Built; torn down

• Blended together; separated

• Created; destroyed

• Condensed; extracted

Tags

NGSS.MS-PS1-5