States of Matter and Physical/Chemical Changes 2024

Front

What is a chemical change?

Back

A chemical change is a process where substances transform into different substances with new chemical properties, often involving a reaction that produces gas, light, or a color change.

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 changes in state (solid, liquid, gas).

Front

What happens to a liquid when it reaches its freezing point?

Back

When a liquid reaches its freezing point, it becomes a solid.

Front

What is an example of a chemical change?

Back

Gasoline burns in a car engine.

Front

What is an example of a physical change?

Back

Water boiling to form steam.

Front

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

Back

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

Front

What is an example of a liquid?

Back

Oil is an example of a liquid.

Front

What occurs during a chemical reaction?

Back

During a chemical reaction, reactants are transformed into products, often involving the breaking and forming of chemical bonds.

Front

What is the definition of matter?

Back

Matter is anything that has mass and occupies space.

Front

What are the three main states of matter?

Back

The three main states of matter are solid, liquid, and gas.