Question

3,8,15, & 17 answer only pleasw

Question 3 (1 point) The chemical name for the model 2008 is O nitrogen trioxide nitrogen tetroxide. nitrogen oxide. nitric oxide. dinitrogen tetroxide.

Answer 1

q3) The model shows two N atoms and 4 oxygen atoms, thus is dinitrogen tetoxide N2O4.

Q8)

CH3- follows octet rule with C having 8 electrons in its valence shell.

Others have

XeF4 12 e-,

ICl2- 10

ClF3 10 e

SF4 10 electrons on the central atom , thus vilating octet rule.

Q15)

To have resonance we need to have delocalised pi orbitals.

OPTION 4 , delocalised pi bonds.

Q17)

Heat = mass x specific heat x rise in temperature

= 76.3g x 0.443J/g.C [60.1-29.5]C

=1034.31 J

= 1.034 x103 J

OPTION B