Calculate the enthalpy change for the reaction of hydrogen and chlorine using the bond energies below. "BOND." " BOND ENERGY "
H-H. 436
CL-CL. 242
H-CL. 431 ​

What happens to energy in an open system?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Why can water dissolve many ionic compounds