At which temperature is the vapor pressure of ethanol equal to the vapor pressure of propanone at 35°C?

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Will mark brainliest how many electrons can be held in the energy level n = 4?

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.