Question 2

Give reasons for the following:

(a) Aluminium foils are used to wrap food items.

(b) Immersion rods for heating liquids are made up of metallic substances.

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Solution

(a) Aluminium is malleable, soft and does not react with food items, so it is used to wrap food items.

(b) Immersion rods for heating liquids are made up of metallic substances because metals are good conductors of heat and electricity.

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Give reasons for the following.

(a) Aluminium foils are used to wrap food items.

(b) Immersion rods for heating liquids are made up of metallic substances.

(d) Sodium and potassium are stored in kerosene.

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Aluminium foils are used to wrap food items

Immersion rods for heating liquids are made up of metals. Give reason

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