Signs of a Chemical Change

How many signs of a chemical reaction are there?

(a)  

Do you need to memorize the 6 signs of a chemical reaction?

• YES

• NO

The first sign of a chemical change is?

(a)  

Are the bubbles from boiling water or soap a sign of a chemical change?

• YES

• NO

The second sign of a chemical reaction is change in temperature that..?

• INCREASES

• DECREASES

• EITHER ONE

The change in color that occurs with a chemical reaction should be..?

• expected

• unexpected

A change in odor can include? (Select 2)

• A NEW smell.

• A smell that is no longer present.

• The same smell from before.

• No change in smell.

The 5th sign of a chemical change is (a)   being produced.

A solid formed as a sign of a chemical reaction is known as..?

(a)  

Which is not a sign of a chemical reaction?

• light produced

• color change

• gas produced

• dissolving