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The difference between the atomic number of an element and the element’s atomic mass is the number of ions.
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When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule
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3. Among the pairs of organic compounds below. Which is
a. water, lubricating oil b. kerosene, liqu...
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