Which of the following species are not a resonance forms of the anionic species in the box? HO A C Select one: O C and D O A and D O B and C A and C

Use ∆EN to determine the bond type (covalent, polar covalent, or ionic) in each of the following compounds which are either found on Mars, or needed for human colonization (reference table is in the package of reference tables)

Which of the following species is/are not a resonance form(s) of the anionic species in the box? 32 32 3 O II and III OIII and IV OI and IV OI I and III O 10 O I II ◄ Previous III IV 39

Q50

Show all possible resonance structures for each of the following molecules or ions:

Use bond energy values to estimate Delta H for each of the following reactions. Bond Bond Energy (kJ/mol) C---N 891 C-N 305 H-H 432 C-H 413 N-H 391

2

Consider the structure below, which is the best Lewis structure of the two resonance forms, A or B, and why? : F: Si-O: A. F: Si = 0: B. B because CO makes a stronger double bond A because Si-O is a longer bond. B because all atoms have a zero charge A because all atoms have a zero charge

Which is the more polar bond in each of the following pairs?  F―Cl or Br―Cl H―O or Se―H S―N or As―H

+ 1 on CI- CI Q A Z @ 2 Click to edit molecule W S ●● command X Carbon tetrachloride, (CCI) is a solvent used in dry cleaning. Draw the Lewis structure of CCI and then determine the ideal bonding angle(s) for the CI-C-CI bond(s). www # 3 CJ Cl: . E D 8.0 F3 C $ 4 R JAN 25 A a FA FLO % 5 V T G Question 1 of 26 6 B FG Y H & 7 A) 90° B) 109.5° C) 120° D) 180° F7 לון U N 8 J DII FB I M ( 9 K F9 zoom O O H F10 L P command F11 { J F12 = ? option 1