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Which metals do not corrode easily?

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Metallic oxides of zinc, magnesium and copper were heated with the following metals.

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What chemical process is used for obtaining a metal from its oxide?

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Name two metals which are found in nature in the free state.

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Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

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Why do ionic compounds have high melting points?

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(i) Write the electron-dot structures for sodium, oxygen and magnesium. (ii) Show the formation

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What would you observe when zinc is added to a solution of iron (II) sulphate?

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Which gas is produced when dilute hydrochloric acid is added to a reactive metal?

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Samples of four metals A, B, C and D were taken and added to the following solution one by one.

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Write equations for the reactions of (i) iron with steam

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Why is sodium kept immersed in kerosene oil?

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Explain the meanings of malleable and ductile.

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is a poor conductor of heat.

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is the best conductor of heat.

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can be easily cut with a knife.

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is a liquid at room temperature.

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