객관식
Given that the ratio of Na to O in an ionic compound is 2:1, what is the correct chemical formula for this compound?
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3. Chemical Reactions
Naming Ionic Compounds
객관식
What is the correct name for the compound FeCl_3?
A
Ferric chloride
B
Iron(III) chloride
C
Ferrous chloride
D
Iron(II) chloride
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검증된 단계별 안내1
Identify the metal in the compound FeCl_3, which is iron (Fe).
Determine the charge on the chloride ion (Cl), which is -1.
Since there are three chloride ions, the total negative charge is 3 × (-1) = -3.
To balance the charges, the iron must have a charge of +3, indicating the oxidation state of iron is +3.
Name the compound using the Stock system, which includes the metal name followed by its oxidation state in Roman numerals in parentheses, resulting in Iron(III) chloride.
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