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Physics, 10.07.2019 14:30 kirkhester1
An element has 4 protons, 5 neutrons, and 4 electrons. what is the atomic mass of the element? 4 5 8 9
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Physics, 22.06.2019 14:00, 19greenlymoos
Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.
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An element has 4 protons, 5 neutrons, and 4 electrons. what is the atomic mass of the element? 4 5...
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