which of the following exhibit only london (disper...
which of the following exhibit only london (dispersion) forces?a) heb) hclc) h2od) cl2
a) he helium (he) is an element by itself. he atom can only exhibit dispersion forces.b) hclh          1a                   1 × 1 e– = 1 e–cl         7a                   1 × 7 e– = 7 e–   total: 8 valence e–[readmore]cl is more electronegative than h, so hcl is a polar covalent compound. hcl exhibits dipole-dipole interaction.c) h2oh          1a                   1 × 2 e– = 2 e–o          6a                   1 × 6 e– = 6 e–   total: 8 valence e– since hydrogen is bonded directly to oxygen.h2o exhibits hydrogen bonding.d) cl2cl         7a                   1 × 7 e– = 14 valence e–composed of the same atom. there's no electronegativity difference.cl2 can only exhibit dispersion forces.
hydrogen gas in its natural state consists of molecules of h2, where two hydrogen atoms are bound together by a 100% covalent bond.

the h2 molecules are attracted to each other by london dispersion forces. london dispersion forces result from the formation of temporary dipoles. only (3) liquid swords (2) **Pure substance – ethyl alcohol, oxygen, carbon, distilled water mixture – blood, steel** write the reactions of f2 with h2o? Because only HBr produces a Br-radical (in presence of peroxide), which then reacts with the double bond. It is considered that HF and HCl are too stable to produce free radicals. HI produces I-radicals, but they have not enough activity for starting of radical chain reaction.  
This is also known as “the peroxide effect” or “the Kharasch effect”. a) 3ag + 4hn03 > 3agno3 + no + 2h2o

b) mno2 + 4hcl > 2h2o + mncl2 + cl2 \[\ce{fecl2 +2naoh -> fe(oh)2 + 2naci}\] ha = 2hl solution: `ch\_(4)(g) + 2o\_(2)(g) to co\_(2)(g) + 2h\_(2)o(g) + "heat. (evolved)"`