Unit 1: Foundations Of Chemistry

Question 1

Digits in a number that have been measured.

Answer 1

Significant Figures

Question 2

Leading zeros in small numbers in significant figures are significant

Answer 2

False

Question 3

Trailing zeros in numbers without a decimal place does not make every digit signifiant

Answer 3

True

Question 4

How many of significant figures are in 4.23?

Answer 4

3

Question 5

How many of significant figures are in 0.000059?

Answer 5

2

Question 6

How many of significant figures are in 20.090?

Answer 6

5

Question 7

How many of significant figures are in 10200?

Answer 7

3

Question 8

Way of writing numbers using only significant figures

Answer 8

Exponential Notation

Question 9

.## x 10^power

Answer 9

Exponential Notation

Question 10

256 in exponential notation

Answer 10

2.56 x 10^2

Question 11

0.000490 in exponential notation

Answer 11

4.90 x 10^-4

Question 12

The answer is rounded to the decimal place of the least accurate digit in the problem

Answer 12

Addition/Subtraction of Significant Figures

Question 13

Answer should have the same number of significant figures as the term with the least number of significant figures in the problem

Answer 13

Multiplication/Division in Significant Figures

Question 14

Have an infinite number of significant figures

Answer 14

Exact Numbers

Question 15

Will not limit you

Answer 15

Exact numbers

Question 16

In 3,000,000, what is the exact number?

Answer 16

3

Question 17

What is the first step to solve combined operations?

Answer 17

1) work out the problem on the calculator

Question 18

What is the second step to solve combined operations?

Answer 18

2) go back and find what the numbers should be rounded to

Question 19

What is the last step to solve combined operations?

Answer 19

3) round off the original answer

Question 20

Mass is

Answer 20

Grams (really kilograms)

Question 21

Length is

Answer 21

Meters

Question 22

Time is

Answer 22

Seconds

Question 23

Volume is

Answer 23

Liters

Question 24

Mega (M) with meters is

Answer 24

1 x 10^6 m

Question 25

Kilo (k) with meters is

Answer 25

1 x 10^3 m

Question 26

Deci (d) with meters is

Answer 26

1 x 10^-1 m

Question 27

Centi (cm) with meters is

Answer 27

1 x 10^-2

Question 28

Milli (m) with meters is

Answer 28

1 x 10^-3 m

Question 29

Micro (μ) with meters is

Answer 29

1 x 10^-6

Question 30

Nano (n) with meters is

Answer 30

1 x 10^-9 m

Question 31

Pico (p) with meters is

Answer 31

1 x 10^-12 m

Question 32

1 m is equivalent to

Answer 32

39.37 inches

Question 33

How many cm is equivalent to 1 inch?

Answer 33

2.54 cm

Question 34

1 km is equivalent to

Answer 34

0.621 mile

Question 35

How much is 1 mile equivalent to in feet?

Answer 35

5280 feet

Question 36

How much is 1 kg equivalent to in pounds?

Answer 36

2.205 lb

Question 37

How much is 1 lb equivalent to in ounces?

Answer 37

16 oz

Question 38

How much is 1 liter equivalent to in quarts?

Answer 38

1.06 qt

Question 39

How much is 1 gallon equivalent to in liters?

Answer 39

3,773 L

Question 40

How much is 1 gallon equivalent to in quarts?

Answer 40

4 qt