The mineral manganosite is a compound of manganese-55 and oxygen-16. If 77% of the mass of manganosite is due to manganese, what is the empirical formula of manganosite?
A) MnO
B) Mn2O
C) Mn2O2
D) MnO2
E) none of these
Correct Answer:
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Q45: The correct name for KHCO3 is
A)calcium bicarbonate.
B)calcium
Q46: Which is the correct formula for lead(IV)chloride?
A)Pb4Cl
B)PbCl2
C)PbCl3
D)PbCl4
E)Pb2Cl4
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A)cobalt
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A)arsenic(V)sulfide.
B)diarsenic
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Q51: Consistent with vanadium being a transition metal,
Q53: The Stock system name for Mn2O7 is
A)dimanganese
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Q64: The chemical formula for iron(II) nitrate is
A)
Q68: The mineral orpiment, having the empirical formula
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