Pure water is:
o
a pure substance
o
an element
o
a mixture
o
a heterogeneous mixture

a pure substance

Explanation:

Pure Water is a pure substance.

Explanation:

Water, H2O, is a pure substance, a compound made of hydrogen and oxygen. Although water is the most abundant substance on earth, it is rarely found naturally in its pure form. Most of the time, pure water has to be created. Pure water is called distilled water or deionized water. I hope this helps.

Cheer's.

the answer to this question is 3.