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Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it?
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How much energy is made when a pice of wood burns. how do you know
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For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
Answers: 2
Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it?
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