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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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Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
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Chemistry, 22.06.2019 23:00
Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?
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Calculate the molarity of 29.95 grams of NaCl in 2.0 liters of solution....
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