Take 10gs of the first reactant and determine how much of the last product would be formed.
C4H8+6O2-> 2 CO2 +4 H2O

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Based on the equation and the information in the table, what is the enthalpy of the reaction?

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j