Question

which best explains how a mixture and a compound compare?
a. a mixture can be physically separated and a compound can be chemically separated.
b. a mixture and a compound can both be physically separated.
c. a mixture and a compound can both be chemically separated.
d. a mixture can be chemically separated and a compound can be physically separated.

Explanation:

• A mixture is made up of two or more substances that retain their individual properties. Physical methods like filtration, distillation, or evaporation can be used to separate the components of a mixture. For example, a mixture of sand and water can be separated by filtration (sand remains on the filter paper and water passes through).
• A compound is a substance formed when two or more elements chemically combine in a fixed ratio. Chemical methods such as electrolysis (for compounds like water - \(H_2O\) which can be decomposed into hydrogen and oxygen by passing an electric current) are required to separate the elements in a compound.

Answer:

A. A mixture can be physically separated and a compound can be chemically separated.