A compound has a molar mass of 90. grams per mole and the empirical formula CH20. What is the molecular formula of this compound?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Non renewable resources like petroleum eventually

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?