2023-24 Physical Science Chapter 7A Chemical Reactions

The chemical properties of the elements in a chemical reaction usually stay the same after the reaction.

• True

• False

Tags

NGSS.MS-PS1-2

When a chemical change takes place through a chemical reaction, there are usually clear signs that one has happened.

• True

• False

Tags

NGSS.MS-PS1-2

Select all of the answers which indicate a chemical change may have occurred.

• A precipitate (solid) may form

• Bubbles may form

• A change in color may occur

• A change in the phase of matter from a liquid to a gas occurs

• A change in temperature may occur

Tags

NGSS.MS-PS1-2

Rotting Eggs

• Bubbles

• Precipitate (solid)

• Energy Released

• Odor

Tags

NGSS.MS-PS1-2

Solid separates

• Bubbles

• Precipitate

• Energy Released

• Odor

Two liquids producing a gas are likely to cause

• Bubbles

• Precipitate

• Energy Released

• Odor

Tags

NGSS.MS-PS1-2

Bending a glow stick

• Bubbles

• Precipitate

• Energy Released

• Odor

Tags

NGSS.MS-PS1-2

Releasing or Absorbing Energy

• Temperature Change

• Color Change

• Burning

• Composition Change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

All chemical reactions experience this

• Temperature Change

• Color Change

• Burning

• Composition Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

NGSS.MS-PS3-4

Candle

• Temperature Change

• Color Change

• Burning

• Composition Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5