Note... the answer to #25 is wrong... it should be -89kJ/mol! (N2 has a triple bond)
Forgot to post this yesterday! Sorry - we'll make the test on Thursday instead then.
p29(1.20)p31(1.43d)p66(2.4)p71(2.86)p71(2.80d),draw mass spec of 2.80, p68(2.31)p69(2.50,2.54,2.56,2.58,2.60) p70(2.67)p31(1.40)
Answers (for the ones we didn't do in class - if you want the others, check with me in person):
2.80d: 79.895 amu
2.31 : a) K alkali metals, metal b) I, halogens, nonmetal c) Mg, alkaline earth metals, metal, d) Ar, noble gases, nonmetal e) S, chalcogens, nonmetal
2.50: Molecular (all elements are nonmetlas): a) PF5 c) SCl2
Ionic (made of ions, usually having a metal): b) NaI d) Ca(NO3)2 e) FeCl3 f) LaP g)CoCO3 h) (NH4)2SO4