Adam is trying to identify a solid. he places a small amount of the substance in an acid solution and observes whether or not a reaction takes place. this test is based on a property. a. physical b. biological c. chemical d. radical

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)

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?