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physics practical investigation

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design and conduct an investion to find out whether the amount of heat produced will depend on increase on concentration of Hcl when Hcl reacts with an excess may investigate either the amount of heat produced or the amount of gas produced(make choice from the start to avoid confusion).you are also not restricted to Hcl and zn as reactants only,you may decide to use your own choice of reactants but check if the reaction is exothermic for heat produced

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