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Which of the following is the empirical formula for propene (C3H6)?
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3. Chemical Reactions
Empirical Formula
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Which of the following represents the empirical formula for the compound x4y8?
A
x2y4
B
x4y8
C
x8y16
D
xy2
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Understand that the empirical formula represents the simplest whole-number ratio of atoms in a compound.
Given the formula x4y8, identify the subscripts for each element: 4 for x and 8 for y.
Find the greatest common divisor (GCD) of the subscripts 4 and 8, which is 4.
Divide each subscript by the GCD to simplify the ratio: \( \frac{4}{4} = 1 \) for x and \( \frac{8}{4} = 2 \) for y.
Write the empirical formula using the simplified subscripts: \( \mathrm{xy_2} \).
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