An organic compound is found to contain 92.25 % carbon and 7.75 % hydrogen. If the molecular mass is 78 g/mol, what are its empirical and molecular formulas?

Adepositional also feature that forms where a stream enters a lake or an ocean is a

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon