Name two substances which expand on heating.

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Iodine and camphor
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MSc(Elec), MTech(CS), PhD(IT)

All substances expand on heating except leather and of course Ice which contract on heating
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Physics Subject Expert

Almost all the substances, Solid, liquid and gases, expand on heating. Gases expand more and solid expands less depend on their molecular arrangement. Any metal, water. oil, any gas(hydrogen, air, CO2) are examples of substances expand on heating.
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MSc Chemistry

mercury & alcohol (ex: in thermometer)
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Physics in simple language

glass and silver
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iron and water
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Brass,iron
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Maths & English Teacher

Many substances expand on heating, Air & water for example since their density decreases and volume increases, hence the expansion.
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Computer lecturer

Aluminium and iron
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Accountancy tutor

copper, iron
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