3. The heat of reaction for the following is -221 kJ. What is the heat of formation for CO(g) in kJ/mol? Record your answer on your answer sheet. Be sure to use the appropriate sign. 2C(s) + O2(g) ---> 2CO(g)​

the product of the pressure and volume is also constant

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

i dont know the answe