Now analyze what happened in the video. Submit your observations and answers to the questions in the essay box below. 1. Analyze the shape of H2O.
a. What is the shape of the H2O molecule?
b. Is it symmetrical?
c. Does this mean that the H2O molecule is polar or nonpolar?

2. How do your answers to the questions in 1 explain your observations of what happened to the stream of water?

3. Analyze the bonds of CCl4.
a. What is the shape of the CCl4 molecule?
b. Is it symmetrical?
c. Does this mean that the CCl4 molecule is polar or nonpolar?

4. Assume that the water stream is replaced by a stream of CCl4. Predict what would happen in each case:
a. charged comb
b. PVC pipe
c. charged balloon

5. Explain your predictions.

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2

Many bird species build nests in which they raise their offspring. one of these species is known as the magnolia warbler. breeding pairs of magnolia warblers build nests out of pieces of grass and twigs. the female warbler will then lay her eggs in the nest and sit on the eggs for a few weeks until they hatch. after the offspring have hatched, the female will continue to sit on the newborn chicks to keep them warm. both the male and the female bring food for the offspring to eat until the young are mature enough to find food on their own. which of these most likely describes why birds such as the magnolia warbler build nests in which to raise their offspring? a. nest building decreases the amount of energy used by the parent birds to raise their offspring to adulthood. b. nest building increases the probability that the offspring will survive and eventually produce offspring of their own. c. nest building decreases the amount of food that the offspring require the adult birds to provide. d. nest building increases the probability of the offspring being located by airborne predators.