#1: when you heat an air-filled, sealed can, what happens inside? a. the collisions of air molecules against the wall of the can are weaker and less frequent. b. the collisions of air molecules against the wall of the can are stronger and more frequent. c. the collisions of air molecules against the wall of the can do not change. **my b is that correct @aaronq ?

Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.