Achlorine atom has 17 protons and 17 electrons. how many protons and electrons make up a chlorine ion of -1 charge?
17 protons, 17 electrons
17 protons, 16 electrons
17 protons, 18 electrons
16 protons, 17 electrons

How does mass affect the speed of an object

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Consider an ideal gas at 27.0 degrees celsius and 1.00 atmosphere pressure. imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. what is the length l of an edge of each small cube if adjacent cubes touch but don't overlap?