Physical Science
Grade Course
Describe the difference between a mixture and a compound
For basic understanding, a mixture comprises of two or more different substances which are not chemically combined to each other. On the other hand, a compound consists two or more chemically bonded different substances which are present in a fixed ratio. In other words, the difference between a mixture and a compound is evident from the mentioned definitions.
Furthermore, there are a number of ways in which a mixture and a compound differs. For example, compounds always contain elements in a fixed ratio. For this reason, Calcium Carbonate, a compound, would always contain 40% Calcium, 12% Carbon and 48% Oxygen by mass. No variations in the mass of these elements would be noticed in Calcium Carbonate. In contrast, a mixture would contain its substances in any proportion (example: salt and water). For this reason, a mixture can be separated into the components which it is made up of through distillation or dissolving unlike compounds which requires a chemical reaction to split it into different elements. This is merely because of the reason that whenever a compound is formed, a chemical reaction occurs and heat is either absorbed in or given out. However, in the case of the formation of a mixture, no chemical reaction takes place. Another conspicuous difference between the two is the fact that a mixture usually behaves in a similar manner as of its components whereas compounds always have a new set of characteristics which are not similar to the elements which they are made up of (Ramsden E, 2001).
- Suppose that you have a pure substance. How can you tell whether it is a compound or an element?
Since matter can be divided into pure substances and mixtures, a pure substance can either be...
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