Asteel cylinder containing 25 kg of ccl2f2 in the form of liquid and vapor is set outdoors on a warm day 25 degrees celsius. what is the approximate pressure of the vapor in the cylinder?

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?

Connect the whole numbers on the periodic table to indicate what they represent?

The reactions of photosynthesis occur in the of plant cell? a. mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll