Which substance corresponds to the formula C3H603?

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Multiple Choice

Which substance corresponds to the formula C3H603?

Explanation:
Reading a chemical formula involves checking how many atoms of each element are present and matching those counts to a substance. The formula C3H6O3 means there are three carbon atoms, six hydrogen atoms, and three oxygen atoms. Among the options, only lactic acid has exactly these counts (three carbons, six hydrogens, three oxygens). Glucose has six carbons and six oxygens (C6H12O6), ethanol has two carbons (C2H6O), and water has no carbon (H2O). Therefore, lactic acid fits the given formula.

Reading a chemical formula involves checking how many atoms of each element are present and matching those counts to a substance. The formula C3H6O3 means there are three carbon atoms, six hydrogen atoms, and three oxygen atoms. Among the options, only lactic acid has exactly these counts (three carbons, six hydrogens, three oxygens). Glucose has six carbons and six oxygens (C6H12O6), ethanol has two carbons (C2H6O), and water has no carbon (H2O). Therefore, lactic acid fits the given formula.

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