A5.5 g sample of a substance contains only carbon and oxygen. carbon makes up 35% of the mass of the substance. the rest is made of oxygen. you are asked to determine the mass of oxygen in the sample.

the answer to this question is 3.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?