Q4 of 56 Page 82

What is an atom?

Atoms are the building blocks of all matter. They are very small; they are smaller than anything we can imagine or compare with.


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2

How many atoms are present in one molecule of aluminium sulphate?

 3

Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass?

 5

Which postulate of Dalton’s atomic theory can explain the law of definite proportions?

 6

Calculate the molar mass of the sulphur and phosphorus molecule.