A substance that cannot be broken down into other substances by ordinary chemical procedures is a(n)

One particular type of atom and it cannot be broken down into a simpler substance

A substance made up of two or more elements that have been chemically combined is called

A substance made of atoms of two or more different elements joined by chemical bonds.

Water, air, and glass are examples of ________.

When 1 carbon atom combines with 2 oxygen atoms, the resulting substance is called a(n)?

A pure chemical substance that consists of one type of atom is called a(n)

A(n) ____________________________________________ is a pure substance made of only one type of atom.

Which of the following could be classified as matter? check all of the boxes that apply.