Question

question 11 (4 points)
classify each of the following as an element, a compound, a homogeneous mixture, or a heterogeneous mixture.

1. salad dressing

a. a homogeneous mixture

1. tap water

b. an element,

1. sodium chloride

c. a compound,

1. aluminum

d. heterogeneous mixture

Explanation:

• Salad dressing: It is a heterogeneous mixture as its components are not uniformly distributed.
• Tap water: It is a homogeneous mixture as the dissolved substances are uniformly distributed throughout the water.
• Sodium chloride: It is a compound as it is made up of two elements (sodium and chlorine) chemically combined in a fixed ratio.
• Aluminum: It is an element as it is a pure substance made up of only one type of atom.

Answer:

1. d. heterogeneous mixture
2. a. a homogeneous mixture
3. c. a compound
4. b. an element