If the heat of combustion for a specific compound is -1320.0 kj/mol and its molar mass is 71.83 g/mol, how many grams of this compound must you burn to release 543.00 kj of heat?

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.