Classify the following as either temporary physical change, temporary chemical change or permanent chemical change. (4mks)
a) Burning of Copper in air to form Copper(II) oxide
b) Melting of Candle wax
c) Heating of hydrated Copper(II) sulphate to produce anhydrous Copper(II) sulphate
d) Burning a piece of paper
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in which class question is this ?
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