Multiple Choice
What is the empirical formula of ?
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3. Chemical Reactions
Empirical Formula
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Which of the following chemical formulas is an empirical formula?
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D
Verified step by step guidance1
Understand that an empirical formula represents the simplest whole-number ratio of atoms of each element in a compound.
Look at each given chemical formula and identify the subscripts (the numbers indicating the number of atoms of each element).
For each formula, divide the subscripts by their greatest common divisor (GCD) to reduce the formula to its simplest ratio.
Check which formula cannot be simplified further because its subscripts are already in the lowest whole-number ratio; this formula is the empirical formula.
Confirm that the formula with subscripts that cannot be reduced further matches the given correct answer, which is the empirical formula.
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