Chapter 19, Problem 1TE

Which of the following boxes contains an element? A compound? A mixture? How many different types of molecules are shown altogether in all three boxes?

To determine

An element, a compound, and a mixture. Number of types of molecules.

Answer to Problem 1TE

The box C contains an element, box B contains a compound, and box A contains a mixture. Total two different types of molecules are shown in all boxes.

Explanation of Solution

The matter can be divided into two types. The two types are pure and impure. The pure matter is further divided into elements and compounds. The impure matter contains mixtures.

The element contains only one type of element. Box C contains only one type of atom. So, it contains an element.

The compound is formed by chemical bonding between two or more atoms. The composition is the same throughout. Box B contains two different atoms bonded together throughout the box. So, it contains a compound.

The mixture contains two or more elements or compounds or both together. Box C contains compounds as well as elements. So, it contains a mixture.

In three boxes, diatomic molecules are present. They are of two types. One type of diatomic molecule contains atoms of the same element. The other type of diatomic molecule contains atoms of different elements. So, in total two types of molecules are present.

Conclusion:

The box C contains an element, box B contains a compound, and box A contains a mixture. Total two different types of molecules are shown in all boxes.