Determine the enthalpy change of the following reaction: 2KClO3 -> 2KCl + 3O2 Given enthalpies:
KClO3: -391.4 kJ/mol
O2: 0 kJ/mol
KCl: -436.7 kJ/mol

A. -45.3 kJ/mol
B. 45.3 kJ/mol
C. 90.6 kJ/mol
D. -90.6 kJ/mol

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?