A 140g sample of water at 25c is mexed with 50g of certain metal at 100c after equilibrium is established the final tempretur of the mixture is 29.6C waht is the specific heat of the metal(specific heat of H2O =4.18J/g)

The answer to your question is Cm = 0.7178 J/g°C

Explanation:

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what are the two models

explanation:

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

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