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Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?
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Calculate the number of molecules present in 0.750 mol of mgo.
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What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
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Which of the following is a physical change?
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