Water is a pure substance. Which of the following is true about water? A chemical change is required to separate the elements present in it. A physical change is required to separate the elements present in it. It is made up of two compounds, each with a different set of atoms. It is made up of an element and a compound.

Respuesta :

Answer: A physical change is required to separate the elements present in it

Answer:

oxygen and hydrogen

Explanation:

on edge