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Why does a structure like H – C = C – H fail to make sense chemically?

Why does a structure like H – C = C – H fail to make sense chemically? Differentiate between hydrogen bonding and van der Waals bonding. If you were a pharmaceutical researcher, why would you want to learn the three-dimensional shapes of naturally occurring ligand (signal) molecules?

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Why does a structure like H – C = C – H fail to make sense chemically?

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  1. Why does a structure like H – C = C – H fail to make sense chemically? • Differentiate between hydrogen bonding and van der Waals bonding. • If you were a pharmaceutical researcher, why would you want to learn the three-dimensional shapes of naturally occurring ligand (signal) molecules? • What does it mean that the electrons of an atom are excited? • Differentiate between dehydration synthesis and hydrolysis.

  2. List the three types of isomers we learned and give an example of each. • Differentiate between polymers and monomers. • Define functional groups. • Describe how the properties of water contribute to the upward movement of water in a tree (more than two properties apply). • How can freezing of water crack boulders? • The concentration of the appetite-regulating hormone ghrelin is about 1.3 x 10-10how many molecules of ghrelin are in 1 L of blood?

  3. Explain how the polarity of water molecule allows it to form hydrogen bonds. • Explain the following graph by relating it to the physical and chemical properties of water:

  4. When a dog pants, holding its mouth open, what property of water allows loss of heat and subsequent reduction of the dog’s internal temperature? • Describe what happens with water when it dissociates. • Compared with a basic solution at pH 9, the same volume of an acidic solution at pH 4 has ____ times as many hydrogen ions. • Differentiate between the dissociation of strong acids and weak acids. Chose which one would be a good buffer and explain why.

  5. Describe an environmental factor that results in acid rain. Explain how acid rain effects the environment and living organisms on land and in water. • Analyze the data on the given graph. How did the frequency of acid rain change over the given years:

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