Q: A temperature in Celsius is $$37^ ext{o}C. $$What is the equivalent temperature in Fahrenheit?

$$F = 1.8 \times 37 + 32 = 98.6^ ext{o}F$$

Question 1

Which of the following best describes the definition of matter in chemistry?

Accepted Answer

Anything that has mass and occupies space.

Question 2

A nurse needs to convert a medication dose from milligrams (mg) to grams (g). If the dose is 2500 mg, what is the correct conversion?

Accepted Answer

$$2500 \div 1000 = 2.5 g$$

Question 3

Which of the following is an example of a chemical, according to the definition provided in class?

Accepted Answer

A substance that has the same composition and properties regardless of where you find it.

Question 4

A patient’s fluid balance is calculated as follows: total input (mL) minus total output (mL). If a patient has a total input of 3200 mL and a total output of 2800 mL, what is the fluid balance?

Accepted Answer

$$3200 - 2800 = 400 mL$$

Question 5

Which step in the scientific method involves forming a possible explanation for an observation?

Accepted Answer

Hypothesis

Question 6

Convert 0.0000272338 to scientific notation.

Accepted Answer

$$2.72338 	imes 10$$^{-5}$$

Question 7

Which of the following is NOT a reason why health professionals use percentages in medical practice?

Accepted Answer

To calculate patient age.

Question 8

A temperature in Celsius is $$37^	ext{o}C. $$What is the equivalent temperature in Fahrenheit?

Accepted Answer

$$F = 1.8 	imes 37 + 32 = 98.6^	ext{o}F$$

Question 9

Which of the following is the correct way to solve for $$x in $$the equation $$2x + 8 = 14$$?

Accepted Answer

$$x = (14 - 8) \div 2 = 3$$

Question 10

Which of the following is an example of a theory in the context of the scientific method?

Accepted Answer

Scientific studies show that exercising lowers blood pressure.

Question 11

A nurse needs to administer 15 mg of a drug in 5 mL of solution. What is the concentration in mg/mL?

Accepted Answer

$$15 \div 5 = 3 mg/mL$$

Question 12

Which of the following is the correct scientific notation for 74171.7?

Accepted Answer

$$7.41717 	imes 10$$^{4}$$

Question 13

Why do scientists use scientific notation when reporting measurements?

Accepted Answer

To make it easier to report extremely large or small measurements and to report the correct number of significant digits.

Question 14

Which of the following is the correct conversion of 86% to a decimal?

Accepted Answer

$$86 \div 100 = 0.86$$

Question 15

A silver coin has a mass of 6.407 grams. What is the place value of the digit 7?

Accepted Answer

Thousandths

Question 16

Which of the following is NOT a benefit of using charts and plots in medical practice?

Accepted Answer

Making data less comprehensible

Question 17

What is the correct scientific notation for 87200?

Accepted Answer

$$8.72 	imes 10$$^{4}$$

Question 18

Which of the following is the correct way to solve for $$P_1 in $$the equation $$P_1V_1 = P_2V_2$$?

Accepted Answer

$$P_1$$ = \frac{P_2V_2}{$$V_1$$}$$

Question 19

Which of the following is an example of an observation in the scientific method?

Accepted Answer

During your visit to the gym, your trainer records that you ran for 25 minutes on the treadmill.

Introduction to Chemistry: Foundations for GOB Chemistry (CH107)

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