Quick Revision On Paper 3 [Basic 9 marks]

Aim： To investigate the trend of reactivity of Group 17 elements when going down the group.

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Aim： To electroplate the iron key with copper metal.

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Aim： To determine the product of electrolysis at anode and cathode.

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Aim： To construct the electrochemical series (ECS)

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Aim： To investigate the effect of ionisation ability of acids on its pH value.

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Aim： To investigate the effect of water on acids to show their properties.

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Aim：To compare the resistance of rusting between alloy and pure metal.

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Aim： To investigate the effect of temperature on the rate of reaction.

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Aim：To investigate the effect of concentration of a solution on the rate of reaction.

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Aim：To investigate the effect of total surface area on the rate of reaction.

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Aim： To compare the elasticity of vulcanized rubber and unvulcanised rubber.

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Aim：To compare the heat of displacement of copper(II) ions by zinc metal and lead metal.

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Aim：To compare the heat of combustion of alcohols.

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Aim： To compare the effectiveness of soap and detergent in hard water.

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Aim： To compare the cleansing action of soap in soft water and hard water.

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