Chemical Reactions

Is the following equation balanced?...
Al + O₂ --> 2Al₂O₃

• Yes!

• No!

Tags

NGSS.MS-PS1-5

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

A group of atoms joined together in a particular way

• product

• molecule

• fertilizer

Tags

NGSS.MS-PS1-1

This image shows a

• chemical reaction

• physical change

• musical change

• all of these answers are correct

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a chemical reaction?

• a change in matter when the molecules rearrange to make new molecules

• a change in matter when matter changes its form or appearance

• a change in matter when the physical appearance changes

• a very boring change in matter

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The reactants in the image above are:

• CH4 and 2 O2

• 2 H2O and CO2

• All of these are reactants

• All of these are products

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5