1) If 2.00g of helium gas and 4.00g of oxygen gas are mixed together what is the

1) If 2.00g of helium gas and 4.00g of oxygen gas are mixed together what is the mole fraction of helium in solution?a) .333b).800c).200d).500e).6662) Find the mass percent of CuSO4 in a solution whose density is 1.3g/mL and whose molarity is 1.22Ma)31.6%b)22.1%c)12.4%d)15.0%e)none of the above3)The hybridization of I in IF4- is a)spb)d2sp3c)sp2d)dsp34)The hybridization of CL in ClF2+ isa)dsp3b)sp2c)spd)d2sp3e)sp35) The hybridization of the central atom AL in AlBr3 isa)sp2b)dsp3c)sp3d)d2sp3e)sp6)hybridization of Se in SeF6 isa)spb)sp3c)sp2d)d2sp3e)sp37)hybridization of Br in BrF3 isa)dsp3b)d2sp3c)spd)sp2e)sp38)what is the bond order of Ne2?a)1 b) 1 1/2 c)2 d)0 e)1/29)what is the bond order of C2+?a)0 b)1 c)2 d) 1 1/2 e) 1/210) which of the following has the greatest bond strength?a) NO- b) o2+ c) O2- d)CN- e)B211) hybridization of lead atom in PbCl4 is a)d2sp3 b)sp2 c)dsp2 d)sp2d e) none of these12) hybridization of the central atom in NO3- is a)sp2 b)p3 c)sp d)sp2d e)sp