The standard molar enthalpy of formation of NH3(g) is -45.9 kJ/mol. What is the enthalpy change if 9.51 g N 2(g) and 1.96 g H2(g) react to produce NH
3(8)?
a.-29.8 kJ/mol-rxn
b.-43.7 kJ/mol-rxn
C.-10.3 kJ/mol-rxn
d.-20.7 kJ/mol-rxn
e. -65.6 kJ/mol-rxn

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.