A piece of iron at 75.0oC is dropped into 50.0 g of water at 20.0oC. The final temperature of the water is 28.3oC. The specific heat of iron is 0.450 j/goC. Determine the mass of the piece of iron.

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Explanation:

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fe 55.85 g/mol and h2o 18.02 g/mol.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl