physics

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if a piece of aluminum with mass 3.99g and a temperature of 100C are dropped into 10cm^3 of water at 21C, what will be the final temperature of the system? The specific heat of aluminium is .900J/gC... ok so i know that i set both equal to each other, but i was wondering do i have to change the 'c' of water to J/gC? please reply and if u have time please please do this and tell me what u get

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    This is not an actual answer I need the answers for homework

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