7. 0, Total number of valence electrons: Lewis structure: 3D sketch: Molecular shape / bond angle Polar or nonpolar?

Molecular Geometry Bond Angle Polarity 2. Is NH3 polar or nonpolar? Show Lewis structure with vectors in support of your answer ulating

5. N2 Total number of valence electrons: Lewis structure: Molecular shape / bond angle 3D sketch: Polar or nonpolar?

Draw a bond-line structure that best matches the molecule below. (White = hydrogen; yellow = fluorine; green = chlorine; red = bromine)

A hypothetical molecule has the following formula XY2. The B-P bonds are polar covalent, with B being most electronegative, however the molecule itself is non polar. What molecular geometry(ies) are possible for this molecule. Use 3-D drawings to explain.

Provide the Lewis, structure, Molecule/Ion type (i.e. AX3E, AX5, etc), Molecular Geometry, bond angle (the ideal/pure bond angle, not the bond angle as affect by lone pairs), and Polarity (a 3-d representation with bond and molecular dipoles annotated) (HCN, BeF2 ,SO2 ,O3 ,OF2)

1.1 Define electronegativity and explain why electronegativity increases with atomic number within a period of the Periodic Table.   1.2 Describe the type of bonding that exists in F2 (g) molecule. How does this type of bonding differ from that found in the HF (g) molecule?   1.3 Define hydrogen bonding using examples.   1.4 PH3 and NH3 moleculea are the same shape but the molecules are non-polar and polar respectively. Explain why this is so.   1.5 Give an example of molecule that has a coordinate covalent bond.   1.6 Draw a Lewis structure for each of the following molecules of ions: a) HF3 b) CIO3-

Answer the following questions about the Lewis structure for the organic molecule CH3CH2CH2CN (see examples in Chapter 10) There are valence electrons. The molecule has single bonds, double bonds, and triple bonds. The three central C atoms on the left have REDS and the shape at each of these is The central C on the right has REDS and the shape is The AENC-N = 0.49 which is only slightly polar and we will consider it to be nonpolar. %3D Since there is only slightly polar covalent bond, the molecule is mostly а. О b. 1 С. 2 d. 3 е. 4 f. 5 g. 8 h. 10 i. 12 j. 14 k. 16 I. 18 m. 20 n. 24 О. 28 р. 30 q. 32 r. 34 S. 36 t. diatomic u. pyramidal v. linear w. monoatomic ions x. tetrahedral y. trigonal planar z. bent aa. 120° bb. 180° dd. 109.5° cc. no bond angles, no central atom nonpolar ее. polar ff. gg. ionic hh. C and C

Histamine (C, H, N,) is responsible for runny nose and watery eyes of allergies, and it stimulates the secretion of stomach acid. Fill in all lone pairs and double bonds to give every atom its usual bonding pattern. XHr HHH 13 :0 th