Elements and Compounds

Front

What is a molecule?

Back

A molecule is two or more atoms chemically combined.

Front

What do you call two atoms of the same element bonded together?

Back

Diatomic.

Front

What is a compound?

Back

A compound is a chemical combination of two or more elements.

Front

What is a subscript in a chemical formula?

Back

A subscript is the number to the lower right of an element symbol that represents the number of atoms for that element.

Front

What are monatomic elements?

Back

Monatomic elements are elements that can exist as a single atom.

Front

What is the difference between an element and a compound?

Back

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

Front

Give an example of a diatomic molecule.

Back

An example of a diatomic molecule is O2 (oxygen gas), which consists of two oxygen atoms.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance in a chemical reaction.

Front

What is the basic building block of matter?

Back

The basic building block of matter is the atom.

Front

What is the difference between a molecule and a compound?

Back

A molecule can be made of the same or different types of atoms, while a compound specifically consists of different types of atoms.