Chemistry (Chapter 1)

1.

1 point

Which of the following can be observed only in a microscopic view?

foam insulation

shape of a soybean plant

X-ray of a knee joint

structure of a muscle cell

2.

1 point

Which of the following was a major contribution to chemistry by Antoine Lavoisier?

He developed the science of alchemy

He encouraged scientists to form explanations based on philosophical arguments.

He showed that oxygen is required for material to burn

He demonstrated the presence of phlogiston in air

3.

1 point

concerned with the mechanism, rate, and energy transfer that occurs when matter undergoes a change

biochemistry

analytical chemistry

inorganic chemistry

organic chemistry

physical chemistry

4.

1 point

Which of the following best describes an example of pure chemistry?

finding an antidote for a new strain of virus

studying chemicals containing carbon

developing a cure for osteoporosis

testing the effects of lower concentrations of a drug on humans

5.

1 point

Which step in the scientific method requires you to use your senses to obtain information

revising a hypothesis

making an observation

stating a theory

designing an experiment

6.

1 point

A theory is a ____.

proposed explanation for an observation

summary of the results of many observations

well-tested explanation for a broad set of observations

procedure used to test a proposed explanation

7.

1 point

How many steps are involved in solving numeric problems?

3

6

4

5

8.

1 point

Which of the following statements is false?

Knowledge of chemistry helps prepare people for careers in soil science

Knowledge of chemistry allows the public to make informed decisions.

Studying chemistry ensures that officials make correct choices in funding technology

Chemistry explains many aspects of nature

9.

1 point

Collaboration and communication are important in science because ____.

most research problems are not very complex

they keep scientists from having to repeat experiments

they increase the likelihood of a successful outcome

most scientists have the knowledge to solve any scientific problem

10.

1 point

Which field of science studies the composition and structure of matter?

biology

physics

geology

chemistry

11.

1 point

Which of these steps should always be followed for effective problem solving?

buying a larger quantity of material than estimated

using a trial-and-error approach and then evaluating

performing metric conversions

developing a plan and then implementing the plan

12.

1 point

the study of chemicals that, in general, do not contain carbon

physical chemistry

analytical chemistry

organic chemistry

inorganic chemistry

biochemistry

13.

1 point

The step that usually comes last in solving numeric problems is ____.

evaluate

analyze

calculate

measure

14.

1 point

the study of all chemicals containing carbon

physical chemistry

biochemistry

analytical chemistry

organic chemistry

inorganic chemistry

15.

1 point

the study of the composition of matter

physical chemistry

biochemistry

inorganic chemistry

organic chemistry

analytical chemistry

16.

1 point

Which of the following is NOT an example of chemistry research in the main area of energy?

studying the effects of insulation

determining the usefulness of oil from soybean plants

producing hook-and-loop tape

developing rechargeable batteries

17.

1 point

How do conceptual problems differ from numeric problems?

A plan is necessary to solve numeric problems, but is not necessary for conceptual problems

Solutions to conceptual problems involve analysis, while numeric solutions do not.

Solutions to conceptual problems normally do not involve calculations.

Logic is not usually involved in solving numeric problems

18.

1 point

How many traditional areas of study can chemistry be divided into?

4

3

5

6

19.

1 point

Which of the following is an example of a current research focus in chemistry?

studying coal combustion as an energy source

development of smoke detectors for common use

applying gene therapy to treat certain diseases

using hook-and-loop tape in the clothing industry

20.

1 point

The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?

inorganic

bio

physical

analytical

21.

1 point

Which of the following would a chemist be most likely to study?

a leaf changing color in autumn

a leaf being blown by the wind

a leaf floating on water

a leaf being eaten by insects

22.

1 point

The variable that is observed during an experiment is called what type of variable?

controlling

responding

independent

manipulated

23.

1 point

The study of the processes that take place in organisms

inorganic chemistry

analytical chemistry

biochemistry

physical chemistry

organic chemistry

24.

1 point

One characteristic of a scientific theory is that ____.

it summarizes a set of observations

it can be proved

it cannot be modified

it can never be proved