Reviewing mass
which statements accurately describe mass? check all that apply.
mass is a chemical property of an object.
mass is measured using a balance.
the mass of an object remains constant.
mass is the same as weight.
kilograms are units of mass.

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

Arrange the images in order to show how lake-effect snow occurs.