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Question
State four differences between compounds and mixtures.
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Solution
Compound
- A compound is formed from its constituent elements as a result of chemical reaction.
- A compound is always homogeneous in nature.
- In a compound the elements are present in a fixed ratio by weight.
- The components of a compound can’t be separated by physical methods but can be separated by chemical methods only.
- The properties of a compound are different from those of its elements.
- The formation of a compound from its elements is accompanied by energy changes.
Mixture
- A mixture is obtained form its (elements, compounds) components as a result of physical change.
- The mixtures can be homogeneous or heterogeneous.
- In a mixture the components can be present in any ratio.
- The components of a mixture can be separated by physical methods only.
- The properties of a mixture lie between those of-its components.
- The formation of a mixture from its constituents is not accompanied by energy changes.
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