Part C 0.115 M pyridine (C,H;N). Express your answer using two decimal places. • O D) ? pH =

9.If we have three containers with water at different temperatures and in each one we drop 5 drops of vegetable dye, in which one will the dye diffuse faster? Immersive Reader A) 80°C B) 37°C C) 15°C D) diffuse equally

What is the main function of a subbase in road construction? A) To provide a smooth riding surface B) To distribute traffic loads C) To reduce noise D) To improve drainage

e) emulsifiers are pretty important compounds for daily life, externally and internally to us humans. Describes the two parts of an emulsifier molecule, and how most emulsifiers work and what they actually do.

2. Explain how suction filtration is carried out in the laboratory. Give the important points that must be observed in doing the process.

4. Plastics are made from what starting material? a. plants b. animals C. petroleum or oil d. air

Which of these is a detergent?

Explain the importance of cold pack.

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Why are ducks waterproof? It’s because they produce copious amounts of oils from their uropygial glands and spread it across their feathers. In this exercise, we’ll be investigating the molecular structure of one of these preen oils to determine how it keeps ducks dry. Q.5 - Preen oil is actually a complicated mixture of many different organic compounds, such as the structure seen previously.. Ornithologists have determined that birds often use preen oil compounds for scent recognition. Below, several different chemicals isolated from preen oil are shown, along with their vapor pressures at room temperature. p-cymene has the highest vapor pressure, meaning it is the most easily evaporated compound of the three listed. Explain why p-cymene has a higher vapor pressure at room temperature compared to the other compounds. Make sure to explain what holds the p-cymene in the sample. (Image attached)