Question 1

Which of the following best describes what chemistry studies?

Accepted Answer

The structure, properties, and changes of matter.

Question 2

Matter is defined as anything that:

Accepted Answer

Has mass and occupies space.

Question 3

Which scientific discipline focuses on the study of the physics of rocks and the earth?

Accepted Answer

Geology

Question 4

A scientist observes a new phenomenon and wonders how it happens. What is the next step in the scientific method?

Accepted Answer

Hypothesize

Question 5

Which of the following statements is an example of an observation?

Accepted Answer

During an assessment in the doctor’s office, the nurse records that the patient’s resting pulse is 32 beats per minute.

Question 6

Which of the following statements is a hypothesis?

Accepted Answer

If I drink coffee early in the morning, I will be able to sleep at night.

Question 7

Which of the following is the correct order of steps in the scientific method?

Accepted Answer

Observation → Hypothesis → Experiment → Data Analysis → Conclusion → Peer Review & Publish.

Question 8

Which of the following scientific notation values is written correctly?

Accepted Answer

$$5.220 	imes 10$$^{3}$$

Question 9

Convert $$1.25 	imes 10$$^{-4}$$ to standard notation.

Accepted Answer

0.0000125

Question 10

Convert 377,000 to scientific notation.

Accepted Answer

$$3.77 	imes 10$$^{5}$$

Question 11

A patient’s blood pressure is being monitored as shown in the image. Which step of the scientific method does this represent?

Accepted Answer

Observation

Question 12

Which of the following best describes a scientific law?

Accepted Answer

A testable phenomenon that the scientific community has found to be provably true.

Question 13

If a number in scientific notation has a negative exponent, what does this tell you?

Accepted Answer

The coefficient value should be made smaller.

Question 14

Which of the following is a real-world example of applying the scientific method in medicine?

Accepted Answer

Designing a diet low in sodium to test if it lowers a patient’s blood pressure.

Question 15

Convert $$3.20 	imes 10$$^{-9}$$ to standard notation.

Accepted Answer

0.0000000032

Question 16

Which of the following is a qualitative observation?

Accepted Answer

The patient looks flushed.

Question 17

What is the coefficient in the scientific notation $$6.88 	imes 10$$^{-12}$$?

Accepted Answer

6.88

Question 18

Which of the following is NOT a step in the scientific method?

Accepted Answer

Ignoring contradictory data

Ch.1 Chemistry in Our Lives: Foundations, Scientific Method, and Scientific Notation

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