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The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true
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Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
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Whitch of the following is a true statement about the magnetic field between two magnets...
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