Chapter 1 Review Introduction to Chemistry Chapter 1

Chapter 1 Review “Introduction to Chemistry”

Chapter 1 Review n What jellyfish gene did scientists transfer to a potato? n One characteristic of a scientific theory is that it can never be ____. n Chemists who work in the biotechnology field are most likely to work with: a) geologists, or b) physicians

Chapter 1 Review n How can making an estimate help you evaluate an answer? n When can a hypothesis become a theory? n The variable that is observed during an experiment is called the _____. n How do conceptual problems differ from numeric problems?

Chapter 1 Review n What plant is a source of biodiesel? n Collaboration and communication are important in science because… n A chemical that is produced by bats is used for what purpose in humans? n What area of chemistry studies chemicals that generally do not contain carbon?

Chapter 1 Review n Which of the following would a chemist be most likely to study: a) a leaf floating on water, or b) a leaf changing color in autumn? n Which of the following is NOT an example of chemistry research in the main area of energy? a) producing hook-and-loop tape, or b) developing rechargeable batteries?

Chapter 1 Review n An analytical chemist is most likely to: a) explain why paint is stirred before it is used, or b) identify the type of paint chips found at the scene of a hit-and-run accident? n What area of chemistry is the study of processes that take place in organisms: a) physical chemistry, or b) biochemistry

Chapter 1 Review n What material found in nature does nylon resemble: a) leaves, or b) silk? n Which of the following statements is false: a) knowledge of chemistry allows the public to make informed decisions, or b) studying chemistry ensures that officials make correct choices in funding technology?

Chapter 1 Review n Which step in the scientific method requires you to use your senses to obtain information? n What was a major contribution to chemistry by Antoine Lavoisier? n Which field of science studies the composition and structure of matter?

Chapter 1 Review n. A _____ is a material found in air, water, or soil that is harmful to humans or other organisms. n In which step of problem solving do you make a plan for “getting from what is known to what is unknown”? n The study of chemicals that, in general, do contain carbon is traditionally called _____ chemistry.

Chapter 1 Review n The step that usually comes LAST in solving numeric problems is ___. n Which of the following is an example of current research focus in chemistry: a) studying coal combustion as an energy source, or b) applying gene therapy to treat certain diseases?

Chapter 1 Review n Which of these steps should always be followed for effective problem solving: a) performing metric conversions, or b) developing a plan and then implementing the plan? n Which of the following best describes an example of pure chemistry: a) developing a cure for osteoporosis, or b) studying chemicals containing carbon?

Chapter 1 Review n Which of the following can be observed only in a microscopic view: a) x-ray of a knee joint, or b) structure of a muscle cell? n What long-standing debate did Lavoisier help settle? n A theory is a _____. n The next questions are True/False.

Chapter 1 Review n Antoine Lavoisier help to transform chemistry from a science of observation to the science of measurement that it is today. n Theories summarize the results of many observations and experiments. n A person who succeeds in chemistry does not need to be a good problem solver.

Chapter 1 Review n Experiments are used to test hypothesis. n Scientists are looking for safer, more effective ways to protect crops. n All information on an Internet site is reviewed by qualified scientists. n Scientists are always looking for new sources of energy.

Chapter 1 Review n. A hypothesis may be rejected after an experiment. n In a mortar and pestle, the mortar has a bowl-shaped appearance. n Ideally, chemicals used to attack insect pests should be nonspecific. n All Internet sites that provide scientific information are equally reliable.

Chapter 1 Review n The supply of fossil fuels is limited. n Theories help you make mental models of objects that cannot be seen. n Effective problem solving involves developing a plan, and then implementing that plan. n The next questions are short answer.

Chapter 1 Review n How many steps are involved in solving numeric problems? n How many traditional areas of study is chemistry divided into? n In what year was the use of lead paint in houses banned? n In what year was the patent obtained for hook-and-loop tape?

Chapter 1 Review n In what year did the FDA ban weight loss products based on the herb ephedra?