Chemical Reactions

_______________ is an example of both a color change and new substance produced from a chemical change with oxygen and metal.

• Shredding paper

• Rusting

• Chipping wood

• Melting wax

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A candle burning is an example of a _________________________

• physical reaction

• condensation

• neutrons

• chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a ___________change, a substance changes into a different substance.

• Physical
• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these is NOT a sign that a chemical change has occurred? 

• Change in shape

• An unexpected color change
• An unexpected temperature change

• The formation of a precipitate

Tags

NGSS.MS-PS1-2

What indicates a chemical reaction occurred?

• heat or light is produced

• gas (bubbles) produced

• unexpected color change

• all of the above

Tags

NGSS.MS-PS1-2

1. How is a chemical change different from a physical change?

• there is no difference

• a physical change creates a new substance

• a chemical change creates a new substance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a physical change?

• Getting a haircut

• Rusty metal

• A compound forming

• Sour Milk

The starting materials in a chemical reaction are called:

• Products

• Reactants

• Starters

• Enders

The substances listed on the right side of a chemical equation are called:

• Yields

• Reactants

• Products

• Precipitates

Tags

NGSS.MS-PS1-5

True or False
In a chemical reaction, no new atoms are created, and no atoms are destroyed. 

• true
• false

Tags

NGSS.MS-PS1-5