EVERYDAY SCIENCE

Detailed explanation-1: -Compounds are substances composed of two or more elements chemically combined that can be separated into simpler substances only by chemical means. Water, for example, is a compound because pure water is composed of only H2O molecules.

Detailed explanation-2: -A compound can be separated into simpler substances by chemical methods/reactions. Elements cannot be broken down into simpler substances by chemical reactions or any physical method.

Detailed explanation-3: -Pure substances cannot be separated by physical methods. But mixtures can be separated by physical methods like evaporation, filtration, sedimentation, centrifugation, separating funnel etc.

Detailed explanation-4: -A mixture can be physically separated into its components; a compound cannot be physically separated into its components. A compound is a pure substance composed of two or more elements. We cannot physically separate the components. However, we can break down a compound by using chemical means.

Detailed explanation-5: -The constituents of a compound can be separated by physical/chemical methods.