Solid magnesium, Mg, reacts with oxygen gas, O, to form solid magnesium oxide, Mg0. Which is a balanced chemical equation for this reaction?

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?