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An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
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If two objects at different te, peraure are in contact with each other what happens to their temperature
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A 7.50 g sample of a nonvolatile, non-electrolyte is dissolved in 75.0 g of water. The solution boil...
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