Compound is a substance consisting of two or more element chemically combined together.
e.g., Sodium chloride which is made up of sodium + chlorine
Characteristic of Compound
A compound has properties that are different from the properties of its constituent elements.
When a compound is formed there is usually and exchange of energy in the form of heat or light energy or both with the surrounding.
A compound can only be broken down into simpler substances by chemical methods, such as decomposition by heat.
The different elements in a compound always join together in a ficed proportion by mass.
For example, 2g of hydrogen + 8g of oxygen form 10g of water
Mixture
Mixture consist of two or more substance not chemically combined together.
E.g., air, soil, blood.
Characteristic of Mixtures
A mixture has the properties of its components
When a mixture is produced little or no energy in the form of heat energy or light energy is given out or taken in.
A mixture can be separated into its components by physical means such as using a magnet, evaporation, filtration.
The components in a mixture can be mixed in any proportion by mass
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