4 NH3(g) + 3 02(g) → 2 N2(g) + 6 H2O(g) If the standard molar heats of formation of ammonia, NH3(g), and gaseous water, H20(g), are -46
kJ/mol and -242 kJ/mol, respectively, what is the value of AH 298 for the reaction represented
above?

What shape would a molecule with two bound groups and two lone pairs have?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

How might this scientific phenomena be explained? a paper clip floats on water.