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30 September, 17:13

4Ca (ClO3) 2

What mistake did Carl make?

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Answers (2)
  1. 30 September, 17:44
    0
    Cl03 is a polyatomic ion with a charge of - 1. So 2 of those brings that charge to - 2. Ca=+2. So Ca=+2 and (Cl03) 2 = - 2. This would balance out the equation. The final result would be Ca (ClO3) 2
  2. 30 September, 17:56
    0
    He did not multiply the calcium atoms by the subscript 2.
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