shakattack33
shakattack33 shakattack33
  • 02-01-2017
  • Chemistry
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in the formula XSO4 the symbol X could represent the element

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W0lf93
W0lf93 W0lf93
  • 05-01-2018
The hint here is to look at the anion of the compound. That is the polyatomic ion, sulfate or SO4. It has a charge of -2. Since the compound does not show any subscript, then it means that the cation must have a charge of +2 for it to be cancelled out. Hence, the elements that can represent X are the elements that have a +2 charge like Fe, Ca, Ba, Mg, Zn, etc.
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