9.8 grams of nitrogen (N), 4.4 grams of carbon dioxide, and 0.20 grams of helium gas are in a container with a total pressure of 253 kPa. What is the partial pressure of each
gas? (Hint- to use a mole fraction, you must first convert to moles)

One of the cell membrane's functions is to protect the cell keep wastes in the cell create new cells keep light out of the cell

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

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