Critical Thinking
Predicting Does methane have isomers? Explain your answer.
Forming Operational Definitions Present an argument for classifying double and triple bonds as functional groups. (Hint: What is the role of a functional group in a compound?)
Classifying Based on their names, classify each of these compounds: octacosane, pentyne, and octanol. What information did the names provide that helped you classify the compounds?
Classifying Which natural polymers can be eaten for breakfast? Which natural polymers can be worn to school?
Applying Concepts When your skin is exposed to sunlight, cells in your skin produce vitamin D. Should vitamin D be classified as a vitamin? Give a reason for your answer.
Math Skills
Use this table to answer Questions 31−33.
Fuels |
Melting Point (°C) |
Boiling Point (°C) |
|---|---|---|
Alcohol 1 |
6 |
228 |
Alcohol 2 |
26 |
83 |
Alkane 1 |
−183 |
−162 |
Alkane 2 |
−138 |
0 |
Alkane 3 |
−57 |
126 |
Analyzing Data Which fuel is a liquid across the greatest range of temperature?
Using Tables At 20°C, which fuels would be liquid?
Analyzing Data Look at the data for the three unknown alkanes. Which alkane is likely to have the fewest carbon atoms? Which is likely to have the most carbon atoms? Give a reason for your choices.
Concepts in Action
Designing Experiments You work at a refinery and want to know whether a fraction you have collected from a distillation tower is a single substance or a mixture. What kind of test could you do to find out?
Relating Cause and Effect What are two ways that a large forest fire might affect the amount of carbon dioxide in the atmosphere?
Making Judgments Why do you think progress in solar energy, wind power, and other alternative forms of energy has been slow?
Drawing Conclusions If the cells in your body can manufacture proteins, why are proteins an important part of a balanced diet?
Comparing and Contrasting When wood burns, the cellulose in wood is converted to carbon dioxide and water. The same products are produced when a termite digests wood, but the process occurs at a much lower temperature. Explain the difference in temperature.
Writing in Science Describe the series of events that starts with the death of a group of ancient ocean organisms and ends with filling the tank of an automobile with gasoline. (Hint: Consider making a flow chart of events first.)
Performance-Based Assessment
Animating a Process Make a flip book that begins with the sun providing energy for photosynthesis in a plant. It should proceed through photosynthesis, and then show how the products of photosynthesis are used in cellular respiration. Complete the book by showing the products of cellular respiration about to be used for photosynthesis.
Table of Contents