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Reported Question / Answer
Q.) The formula of calcium hydrogen carbonate indicates
1)
the charge on HCO
3
is −1
2)
that the charge on Ca is +2
3)
all of these
4)
that for each molecule of calcium hydrogen carbonate, one ion of Ca and two ions of hydrogen carbona
5)
NULL
Answer :
3
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Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
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