This question appears in power prep 2 CD. Actually the question is as follows: a<=b<=c<=d<=e<=110; for a to be minimum, b,c,d,e must be maximum. Assume b,c,d and e to be 110 (Yes, the sum has less-than-or-equal-to signs) that way you get the answer as: a+440=100...
how make a all atom name
how make a hybridization of pcl5 with dygram