Warm up 12/06/2024 Chemical Changes and Density Flashcard

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What happens to a substance with a density less than water when placed in water?

Back

It will float.

Front

What is a chemical change?

Back

A chemical change is a process where one or more substances are transformed into new substances with different properties.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is an example of a chemical change?

Back

Rust forming on iron is an example of a chemical change.

Front

What indicates a chemical change has occurred?

Back

Evidence such as color change, gas production, or temperature change can indicate a chemical change.

Front

What happens when vinegar is mixed with baking soda?

Back

A gas is produced, indicating a chemical change.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³.

Front

What will happen to honey when poured into water?

Back

Honey will sink to the bottom because it is denser than water.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, determined by the object's density compared to the fluid's density.