Element or Compound

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen (H), oxygen (O), and carbon (C).

Front

What is a compound?

Back

A compound is a pure substance made of two or more elements that are chemically combined. Examples include water (H2O) and carbon dioxide (CO2).

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically combined. Examples include air and salad.

Front

What is the chemical symbol for Calcium?

Back

The chemical symbol for Calcium is Ca.

Front

What is the chemical symbol for Helium?

Back

The chemical symbol for Helium is He.

Front

What is the chemical formula for a compound made of two hydrogen atoms and one oxygen atom?

Back

The chemical formula is H2O, which represents water.

Front

Is C4 an element or a compound?

Back

C4 is an element, specifically a form of carbon.

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

Can compounds be separated into their elements?

Back

Yes, compounds can be separated into their elements through chemical reactions.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout.