Chapter 1 And 2

Front 1

what subject is referred to as the central science?

Back 1

chemistry

Front 2

in which of the following industries does chemistry play a role in? a. petrochemical b. medicine c. pharmaceutical d. agricultural e. all of the above

Back 2

e. all of the above

Front 3

which of the following is derived from a petrochemical?a. detergents b. plastics c. textiles d. dyes e. all of the above

Back 3

e. all of the above

Front 4

subtract 0.25g from 31.116g and round off the answer

Back 4

30.87g

Front 5

add 5.0x10 ^4 to 2.0x 10^3 and express the answer in scientific notation

Back 5

5.2x10^4

Front 6

what is a unit factor derived from 1 mile=5280 feet?

Back 6

1 mile/5280 feet

Front 7

how many significant digits are in 100.60 centimeters?

Back 7

4

Front 8

a sample of 22k gold contains the following by mass: 22 grams gold, 1 gram silver, and 1 gram copper. what is percent of gold?

Back 8

92%

Front 9

0.000 000 000 175 meter in scientific notation

Back 9

1.75x10^-10

Front 10

if a marathon is 26.2 miles, what is the distance in yards? (1 mile=1760 yards)

Back 10

46,100 yards

Front 11

1,000,000,000,000,000,000,000,000,000 in exponential form

Back 11

1x10^27

Front 12

0.000000104 centimeter in scientific notation

Back 12

1.04x10^-7

Front 13

what is the term for digits that exceed the certainty of the instrument?

Back 13

non significant digits

Front 14

multiple 1.05 cm by 2.2 and round off the answer

Back 14

2.3cm ^2

Front 15

if a penny has a mass of 2.507g and is 97.5% zinc, what is the mass of copper?

Back 15

0.063g

Front 16

how many minutes is required for sunlight to travel from the sun to the earth? (assume the sun is 93,000,000 miles from the earth and that sunlight travels at 1.86x10^5 miles per second)

Back 16

8.3 minutes

Front 17

divide 2882 centimeters by 14.575 seconds and round off the answer

Back 17

197.7cm/sec

Front 18

one cubic centimeter of helium gas contains 26,900,000,000,000,000,000 atoms at STP. write in scientific notation

Back 18

2.69x10^19

Front 19

round of the following measurement to 3 significant digits: 35.35ml

Back 19

35.4ml

Front 20

what is the 3rd step in the unit analysis method of problem solving?

Back 20

apply a unit factor to convert a unit in the given value

Front 21

multiply 2.505m by 1.75m by 1.0m and round off the answer.

Back 21

4.4m^3

Front 22

how many significant digits are in the time measurement 60010 seconds?

Back 22

4

Front 23

if a ship travels 26.0 nautical miles, what is the distance is yards?

Back 23

58,100 yards

Front 24

how many significant digits are in the mass measurement 1.050 grams?

Back 24

4

Front 25

if the mass of Mars is 6.42x10^23 kg, what is the mass in metric tons? (1metric ton=1000kg)

Back 25

6.42x10^20

Front 26

what is the term for a statement of 2 equivalent quantities?

Back 26

unit equation

Front 27

how many significant digits are int he time measurement 0.0036 sec?

Back 27

2

Front 28

what is the term for the ratio of 2 equivalent quantities?

Back 28

unit factor