Science Quiz / Valencies

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Can you name the valencies?

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Score 0/21 Timer 05:00
Compund/AtomValency
Hydrogen sulfate
chromium(|||)
iron(||)
hydroxide
cobalt(||)
copper(||)
ethanoate (acetate)
Hydrogen phosphate
carbonate
sulfate
phosphate
Compund/AtomValency
nitrate
permagnate
ammonium
magnanese(||)
zinc
Hydrogen carbonate
iron(|||)
cyanide
nickel(||)
lead(||)

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