Cedarian said that water can be created in a lab by burning hydrogen gas in air. He said that water is not a compound, because only hydrogen is used to make water. What is wrong with David’s statement? A. A compound only contains one type of element.
B. Hydrogen is made up of two different types of atoms.
C. Water was not the product formed when he burned hydrogen.
D. Compounds must contain two elements, and oxygen from the air was what combined with hydrogen to make water.