Question

Water is formed from hydrogen and oxygen.


a. What is the correct chemical formula of water?


b. What is the ratio by mass of hydrogen and oxygen in water?


c. Why is water considered as compound?


d. What is the gaseous form of water?​

Answer 1

Answer:

a. H2O

Explanation:

b. 2:1

c. Because in water hydrogen and oxygen are present in a simple whole number ratio

d. Water Vapour

Answer 2

• H2O

• 2:1

• Water is a compound. It contains more than one element: hydrogen and oxygen atoms are joined together; as illustrated in the video clip Elements and Compounds, above. An important feature of compounds is that they are very different from the elements from which they are made.

• water vapor