Which of the following sets of empirical formula, molar mass, and molecular formula is correct?
CH, 78 g, C13H13
C3H80, 120 9, C3H802
CH4N, 90 g, C3H12N3

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

yes

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