R 1.1-1.6

Question 1

significant figures

Answer 1

certain digits and first uncertain digit (estimated number), the convention of significant figures automatically indicates something about the uncertainty in a measurement, uncertainty in the last number usually assumed to be + over - unless indicated

Question 2

rules for counting significant figures

Answer 2

1. non zeros integers 2. zeros 3. exact numbers

Question 3

non zero integers

Answer 3

always count as significant figures

Question 4

temperatures

Answer 4

three systems: Celsius, kelvin, Fahrenheit

Question 5

celcisu

Answer 5

physical scienes

Question 6

kelvin

Answer 6

physical scienies

Question 7

fahreneheit

Answer 7

engineering sciens

Question 8

celcisu and kelvin

Answer 8

different is zero points, same: size of temperature unit (the degree)

Question 9

conversion between Celsius and kelvin

Answer 9

k = c + 273.15
c = k - 273.15
when converting: consider two adjustments (one for degree, one for zero), account for difference in degree size

Question 10

density

Answer 10

property of matter that is often used by chemists as an identification tag, mass of substance divided by volume, can be determined easily by weighing an accurately known volume of liquid, identification of substances, used to determine amount of anti-freeze

Question 11

deci

Answer 11

10 to the -1

Question 12

exa

Answer 12

10 to the 18

Question 13

peta

Answer 13

10 to the 15

Question 13

heco

Answer 13

10 the 3

Question 15

atto

Answer 15

10 to the -18

Question 16

pico

Answer 16

10 to the -12

Question 17

deka

Answer 17

10 to the 1

Question 18

femto

Answer 18

10 to the -15

Question 19

tera

Answer 19

10 to the 12