Which statement is true for most chemical reactions?
an energy change occurs during the breaking and forming of bonds.
the internal energy of the system increases during a reaction.
energy is released during the formation of reactants.
the enthalpy of the products is higher than the enthalpy of the reactants.

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?