Yall when did become tinder? lmbo

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Compare and contrast refraction of light and sound will give brainliest

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?