Matter Classification and Properties Flashcard

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 heat, light, or gas production.

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.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties and can be separated by physical means.

Front

What is an example of a homogeneous mixture?

Back

Air is an example of a homogeneous mixture, as it has a uniform composition throughout.

Front

What is an example of a heterogeneous mixture?

Back

A salad is an example of a heterogeneous mixture, as its components can be easily distinguished and separated.

Front

What tools can be used to separate a mixture of sand and iron filings?

Back

A magnet can be used to attract iron filings, while sand can be separated by using a filter.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically bonded together.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution. Water is often referred to as the universal solvent.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution.

Front

What is filtration?

Back

Filtration is a physical separation process that uses a filter to separate solids from liquids or gases.