Chemical Reaction 725 718

Reactants are atoms present at the ______ of the reaction.

• beginning

• end

Tags

NGSS.MS-PS1-2

________ are atoms present at the beginning of the reaction.

• Reactants

• Products

During a _______ reaction, atoms rearrange to form a new molecule.

• chemical

• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

_____ are atoms present at the end of the reaction

• reactants

• products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Products are atoms present at the ______ of the reaction

• beginning

• end

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What new substance forms in the chemical reaction?

• air

• water

• rust

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How many atoms of oxygen (O) are in a water molecule?

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

How many atoms of hydrogen (H) are in a water molecule?

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

How many atoms of carbon (C) are in carbon dioxide?

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

How many atoms of oxygen (O) are in carbon dioxide?

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1