Variable Valencies of Some Elements Flashcards

1
Q

Iron

A

2 and 3 (ferrous and ferric)

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2
Q

Copper

A

1 and 2 (cuprous and cupric)

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3
Q

Mercury

A

1 and 2 (mercurous and mercuric)

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4
Q

Lead

A

2 and 4 (plumbous and plumbic)

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5
Q

Tin

A

2 and 4 (stannous and stannic)

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