ASAP, within 1 hour, 50 POINTS+ BRAINLIEST, CHEMISTRY PUT ON PIECE OF PAPER 1). Consider a molecule of H 2 S.

a). Show how to calculate the number of valence electrons

b). Give the skeletal arrangement for the molecule

c). Give the complete Lewis structure

d). EXPLAIN the most likely shape for the molecule

2). Consider a molecule of carbon disulfide, CS 2 .

a). Give the Lewis structure

b). Determine the % Ionic Character in the carbon-to-sulfur bond

c). Is CS 2 more likely to be a nonpolar or polar molecule? EXPLAIN your reasoning

d). Is CS 2 more likely to mix with water(H 2 O) or carbon tetrachloride(CCl 4 )? EXPLAIN your choice

3). We can draw the Lewis structures for Polyatomic ions. Consider the nitrate ion, NO 3 -1 .

a). Show how to calculate the number of valence electrons

b). Draw the skeletal model for nitrate ion

c). Are the bond angles from O-N-O 120 0(
d). Complete the Lewis structure

e). Give the expected shape

4). When a substance demonstrates RESONANCE we are able to draw more than one legitimate

Lewis structure for the compound. Draw all good Lewis structures for sulfur trioxide (SO 3 ), a

compound known to demonstrate resonance.

5). How many of the following contain triple bonds? PROVE it!

HCN O 2 N 2 PH 3 C 2 H 2