Question

Which of the following change are temperory and reversible rusting of iron, melting of wax, burning of a candle, heating of a zinc oxide, magnetism of an iron bar, cooking of food glowing of an electric bulb, adding vinegar to baking soda, formation of bubbles

Answer 1

Answer:

temporary and reversible : melting of wax, magnetism of iron bar, glowing of an electric bulb, formation of bubbles.

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