Parts of a Chemical Equation

Which numbers are coefficients in this equation?

• 3 and 8

• 3, 8, 2, 2, 2

• 1, 5, 4, 3

• 5, 4, 3

Answer explanation

The coefficients are the large numbers in front of the molecule. It shows how many of this molecule are involved in the reaction.

Which is/ are the reactant(s) in this equation?

• C₃H₈

• C₃H₈ and O₂

• H₂O and CO₂

• H₂O

Answer explanation

The reactants are the molecules on the left side of the reaction arrow.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which numbers are subscripts in this equation?

• 3, 8, 2, 2, 1, 1, 2

• 3, 8, 2, 2, 2

• 1, 5, 4, 3

• 5, 4, 3

Answer explanation

The subscripts are the small numbers to the right of the element. It shows how many of this element are included in the molcule.

Tags

NGSS.MS-PS1-5

The highlighted portion of the equation is the:

• Reactants

• Products

• Yield

• Coefficient

Label the diagram of this chemical equation

a

b

c

Yield Sign

Products

Elements

Reactants

Tags

NGSS.MS-PS1-5

LABEL THE PARTS OF A CHEMICAL EQUATION

a

b

c

d

e

f

g

Reaction arrow

Chemical formula

Coefficients

Reactants

Subscript

Products

State of Matter

The highlighted portion of the equation is a:

• Reactants

• Subscript

• Yield

• Coefficient

The highlighted portion of the equation is the:

• Reactants

• Subscript

• Yield

• Coefficient

Tags

NGSS.MS-PS1-5

Match the following parts of a chemical equation.

• Yields

• Arrow

• Ending Material

• Reactant

• Starting Material

• Product

Match the following

• reactant(s)

• D

• subscript

• C

• yields

• A

• product(s)

• E

• coefficient

• B

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5