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Chemistry : Radicals with Negative Valencies - Basic


Is each element / radical below monovalent (valency = 1), divalent (valency = 2) or trivalent (valency = 3)?

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Multiple choice

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1.

Nitrate (NO3)

  monovalent

  divalent

  trivalent

  Half-n-half Clue
 

2.

Sulfide (S)

  monovalent

  divalent

  trivalent

  Half-n-half Clue
 

3.

Iodide (I)

  monovalent

  divalent

  trivalent

  Half-n-half Clue
 

4.

Hydrogen carbonate or Bicarbonate (HCO3)

  monovalent

  divalent

  trivalent

  Half-n-half Clue
 

5.

Carbonate (CO3)

  monovalent

  divalent

  trivalent

  Half-n-half Clue
 

6.

Hydrogen sulfite or Bisulfite (HSO3)

  monovalent

  divalent

  trivalent

  Half-n-half Clue
 

7.

Phosphate (PO4)

  monovalent

  divalent

  trivalent

  Half-n-half Clue
 


 
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