Parts of a Chemical Equation

A chemical ______ is a written representation of a chemical reaction. (Fill in the blank)

• equation

• formula

• bond

• element

The ______, shown on the left-hand side of the equation, are the substances present at the start of a chemical reaction. (Fill in the blank)

• reactants

• products

• catalysts

• solvents

Tags

NGSS.MS-PS1-5

The yield arrow separates the ______ from the products. (Fill in the blank)

• reactants

• elements

• compounds

• catalysts

The products, shown on the ______-hand side of the equation, are the substances present at the end of a chemical reaction. (Fill in the blank)

• right

• left

• top

• bottom

Tags

NGSS.MS-PS1-5

In the chemical equation shown, what are the reactants?

• CO2 and 2H2O

• CH4 and 2O2

• CH4 and CO2

• 2O2 and 2H2O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the chemical equation shown, what are the products?

• CH4 and 2O2

• CO2 and 2H2O

• CH4 and CO2

• 2O2 and 2H2O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the elements, or types of atoms, in the chemical equation for photosynthesis?

• C, O, H

• N, O, H

• C, N, H

• C, O, N

Tags

NGSS.MS-LS1-6

NGSS.MS-PS1-1

Fill in the blank: The reactant side of the photosynthesis equation has a total of ___ carbon (C) atoms.

• 6

• 12

• 3

• 24

Tags

NGSS.MS-LS1-6

Fill in the blank: The reactant side of the photosynthesis equation has a total of ___ oxygen (O) atoms.

• 18

• 12

• 6

• 24

Tags

NGSS.MS-LS1-6

Fill in the blank: The reactant side of the photosynthesis equation has a total of ___ hydrogen (H) atoms.

• 12

• 6

• 18

• 24