Chapter 15, Problem 17STP

To determine

Two examples of the compound and reason for no change in the ratio of elements in the compounds.

Explanation of Solution

Introduction:

The compound is the chemical mixture of the two or more different substance in same ratio.

The water and chalk are example of the compound. The water is formed by the combination of two atoms of the hydrogen and one atom of oxygen. The chalk is formed by the combination of calcium, carbon and oxygen atoms.

The ratio of the elements in the compound do not changes because the elements from the compound cannot be separated by the physical means.

Conclusion:

Thus, the two examples of compound are water and chalk.