1) distinguish between metals and non metals
2) what is meant by the term compound ? state three characteristic properties of compound .
3) state whether the properties of individual constituent elements of water differ from the compound water. how ?
4) explain the term chemical formula. state what a chemical formula denotes.
5) differentiate between elements and compounds.
6) give different uses of metals and non metals in daily life.
7) iron sulphide is a compound and shows different properties than its constituent elements
a) what are the constituent elements of iron sulphide ?
b) how can you prove this property with an activity ?
8) make a concept map on 'classification of matter' . Give examples
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A compound is a pure substance composed of two or more elements, combined chemically in a definite proportion by mass.
characteristics of compound
A compound contains atoms of two or more elements combined chemically in a fixed ratio by mass
Compounds have definite melting and boiling point
The constitutions of a compound from which it is made can be separated only by chemical methods
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