Science Homework Help

1.)In the box below, please upload an image of page 5 of the Molecular Models Lab. If you used blank paper, please write each structure in the same location as it appears on the page. Include the number of valence electrons at the top of the page.

2.)Refer to the Models Lab page 6, and identify the molecules with appropriate shape.

• -abcd H2O
• -abcd O3
• -abcd CO2
• -abcd HCN
• -abcd NH3
• -abcd CH2O

1. linear
2. bent
3. planar
4. non-planar

3.)Identify whether each of the bonds listed is Polar or Non-polar (NP).

• -ab H-CL
• -ab C-O
• -ab O-H
• -ab O-O
• -ab N-H
• -ab C-CL
• -ab H-C

1. polar
2. non-polar (NP)

4.)Based on the work from page 7 – 8 of the Models lab, and considering the shape and the bond polarity, identify the following molecules as Polar or Non-polar (NP).

• -ab CO2
• -ab HCN
• -ab H2O
• -ab NH3
• -ab CH2O
• -ab CH4
• -ab CH3CL
• -ab HCL

1. Polar
2. Non-polar (NP)