Multiple choice general knowledge science & technology

barium sulfate

  1. Ba(SO4)2

  2. Ba(SO4)3

  3. Ba2(SO4)3

  4. BaSO4
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D Correct answer
Explanation

Barium (Ba) has a valency of +2, and the sulfate ion (SO4) has a valency of -2. When they combine, the charges balance in a 1:1 ratio, resulting in the chemical formula BaSO4. Other options incorrectly represent the ionic charges or stoichiometry.

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