Bell Work 8: 9

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, often accompanied by signs such as color change, gas production, or heat release.

Front

What are some signs of a chemical change?

Back

Signs of a chemical change include color change, odor change, gas bubbles, and the formation of a precipitate.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition, such as freezing or melting.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in the formation of new substances, while a physical change does not change the chemical identity of a substance.

Front

How many centiliters (cL) are in a deciliter (dL)?

Back

There are 10 centiliters in 1 deciliter.

Front

Convert 19 dL to cL.

Back

19 dL = 190 cL.

Front

How many hectograms (Hg) are in a kilogram (Kg)?

Back

There are 10 hectograms in 1 kilogram.

Front

Convert 80 Kg to Hg.

Back

80 Kg = 800 Hg.

Front

What is the metric conversion for length from meters to centimeters?

Back

1 meter = 100 centimeters.

Front

Convert 5 meters to centimeters.

Back

5 meters = 500 centimeters.