Reactions

What kind of scientist forms new materials by studying chemical reactions?

• Chemical engineer

• Materials scientist

• Pharmacist

• Medical doctor

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

_________ is (are) made of more than one atom.

• molecule

• Protons

• Neutrons

• An element

Tags

NGSS.MS-PS1-1

A process in which atoms rearrange to form new substances.

• extended structure

• boiling point

• chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a chemical equation the reactants are on the left side of the arrow. Are the reactants the beginning substances or the ending substances?

• beginning

• ending

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a chemical equation the products are on the right side of the arrow. Are the products the beginning substances or the ending substances?

• beginning

• ending

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

During a chemical reaction, atoms can

• be destroyed to form a new substance

• be created to form a new substance

• be rearranged to form a new substance

Tags

NGSS.MS-PS1-5

Burning paper is an example of a

• boiling point

• chemical reaction

• extended structure

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is the following equation balanced?

Al + O₂ ---> 2Al₂O₃

• YES

• NO

Tags

NGSS.MS-PS1-5

What is the number before a chemical formula called?

• Coefficient

• Atom

• Subscript

• Equation

Complete the sentence.

During a chemical reaction, atoms ________.

• can appear

• can disappear

• get rearranged

• stop moving and vibrating

Tags

NGSS.MS-PS1-5