A student uses a variety of techniques to separate four different compounds from 2.10 g of a mixture. After separation of the mixture, the student weighs each compound and finds 0.443 g of naphthalene, 0.295 g NaCI, 0.344 g of sand, and 0.688 g
of iron.

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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

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