Uneb uce chemistry paper one 2016
1. Which one of the following is a physical change?
A. Heating ammonium chloride
B. Heating potassium nitrate
C. Burning sulphur
D. Rusting of iron
Uneb uce chemistry paper one 2016
1. Which one of the following is a physical change?
A. Heating ammonium chloride
B. Heating potassium nitrate
C. Burning sulphur
D. Rusting of iron
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