Question

5 Give three points eact to show that:
a) Air is a mixture
b) water is a compound​

Answer 1

Answer:

a) Air a mixture —

• air is a mixture because it contains many types of gases
• not only gases but also it contains dust particles
• a mixture is formed when more then two substances or elements gets mixed, mixture is not a pure substance

b) Water is a compound —

• water is a compound because only two substances or elements is present
• water is made up of only two elements, Hydrogen and Oxygen, (H2O)
• a compound is formed when two elements gets chemically joined, but it is a pure subtance.

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