Chemicals and chemical changes

Which type of change is most often easily reversed?

• Chemical

• Physical

• Both a physical and chemical change.

• Neither a physical or chemical change.

Tags

NGSS.MS-PS1-4

Identify what type of change happening in the picture below...

• Chemical Change

• Physical Change

• Endothermic Reaction

• Exothermic Reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Identify what type of change happening in the picture below...

• Chemical Change

• Physical Change

• Endothermic Reaction

• Exothermic Reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

If the chemical properties of a substance remain unchanged & the appearance or shape of an substance changes it is a...

• Chemical Change

• Physical Change

• Both a physical and chemical change.

• Neither a physical or chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which of the following is an example of a physical change?

• A glass falling and shattering on the floor.

• Baking a birthday cake.

• Burning a piece of paper.

• Baking soda and vinegar mixing together.

A green powder is heated & a gas is given off while it turns to a black solid. This describes

• Physical Change

• Chemical Change

• Change in State

• Change in Temperature

Tags

NGSS.MS-PS1-2

During Chemical Reactions, the new substances created are called?

• Precipitate

• Corrosion

• Reactants

• Products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A cup of water is left outside for two days. When it was checked there was only half a cup left. What happened?

• evaporation; chemical change

• condensation; physical change

• evaporation; physical change

• condensation; chemical change

Tags

NGSS.MS-ESS2-4

Identify the following chemical reaction.

Pb + FeSO₄ ----> PbSO₄ + Fe

• Synthesis (or combination)

• Decomposition

• Single displacement

• Double displacement

Tags

NGSS.MS-PS1-2

What reaction has the following general formula:

AB --> A + B

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

Tags

NGSS.MS-PS1-2