Elements and Compounds Review

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Front

Give an example of a compound.

Back

H₂O₂ (Hydrogen Peroxide) is an example of a compound.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

Is Iron (Fe) an element or a compound?

Back

Iron (Fe) is an element.

Front

How many different elements are in the compound H₂O₂?

Back

There are 2 different elements in H₂O₂: Hydrogen (H) and Oxygen (O).

Front

What does the symbol 'H' represent?

Back

The symbol 'H' represents the element Hydrogen.

Front

What is a diatomic molecule?

Back

A diatomic molecule is a molecule made of two atoms of the same element, such as H₂ (Hydrogen gas).

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 up of two or more different types of atoms chemically bonded together.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H₂O.

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a compound.