For the species below draw additional resonance structures (where all atoms have access to an octect of electrons) for species A, B, C, and D. Determine the bond order of the bond from the underlined C to underlined O for the lowest energy structure(s). A B C
O---C≡N O=C=N O≡C---N
O -1 0 +1
C 0 0 0
N 0 -1 2

Which resonance form (A, B, or C) is the preferred structure of the fulminate ion? The charge on the fulminate ion is:

a) the particles of the chair are strongly held together.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o