Q: Which of the following is a correct conversion factor for the equality 1 m = 100 cm?

$$\frac{100\ \text{cm}}{1\ \text{m}}$$

Question 1

Which of the following study strategies is LEAST effective for learning chemistry, according to the provided materials?

Accepted Answer

Rereading text or notes repeatedly without self-testing

Question 2

A premature baby has a mass of 2518 grams. What is the place value of the digit '1' in this number?

Accepted Answer

Tens

Question 3

Calculate the percentage of chemistry books if there are 8 chemistry books out of a total of 32 books. Use the formula: $$	ext{Percentage} = \frac{	ext{Part}}{	ext{Whole}} 	imes 100\%$$

Accepted Answer

25\%

Question 4

Which of the following is the correct scientific notation for the number 64,000?

Accepted Answer

$$6.4 	imes 10$$^{4}$$

Question 5

Which of the following is the SI unit for mass?

Accepted Answer

kilogram (kg)

Question 6

How many significant figures are in the measurement 0.002650 m?

Accepted Answer

4

Question 7

Which of the following is an exact number?

Accepted Answer

1 kg = 1000 g

Question 8

Round 3.1457 g to three significant figures.

Accepted Answer

3.15 g

Question 9

Perform the following calculation and give the answer with the correct number of significant figures: $$5.00 	ext{ cm} 	imes 3.408 	ext{ cm} \div 2.0 	ext{ cm}$$

Accepted Answer

8.5 cm

Question 10

Which metric prefix represents $$10^{-6}$$?

Accepted Answer

micro (\mu)

Question 11

A doctor prescribes 0.150 mg of Synthroid. If each tablet contains 75 mcg of Synthroid, how many tablets are required? (1 mg = 1000 mcg)

Accepted Answer

2 tablets

Question 12

What is the density of a zinc object with a mass of 68.60 g and a volume of 9.5 cm$$^3$$?

Accepted Answer

$$7.2 \ \frac{g}{cm$$^{3}$$}$$

Question 13

Which of the following objects will float in water (density = 1.00 g/mL)?

Accepted Answer

Ice (D = 0.92 g/mL)

Question 14

A person weighs 164 lb. What is their mass in kilograms? (1 kg = 2.20 lb)

Accepted Answer

74.5 kg

Question 15

What is the specific gravity of a liquid with a density of 1.32 g/mL?

Accepted Answer

1.32

Question 16

If a solution contains 18% body fat by mass, how many kilograms of body fat are in 100 kg of body mass?

Accepted Answer

18 kg

Question 17

Which of the following is the correct equality for the prefix 'kilo'?

Accepted Answer

1 km = 1000 m

Question 18

A rattlesnake is 2.44 m long. How many centimeters long is the snake?

Accepted Answer

244 cm

Question 19

Which of the following is a correct conversion factor for the equality 1 m = 100 cm?

Accepted Answer

$$\frac{100\ 	ext{cm}}{1\ 	ext{m}}$$

GOB Chemistry: Measurement, Significant Figures, and Problem Solving

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