Chemistry Vocab 3

Question 1

International System of Units

Answer 1

Standardized system of measurement based in the metric system

Question 2

Kelvin Scale

Answer 2

Freezing point is 273.15 degrees and its boiling point is 373.15

Question 3

Temperature

Answer 3

Measure of how hot or cold an object is

Question 4

Meter

Answer 4

The SI unit of length

Question 5

Calorie

Answer 5

Quantity of heat that rises the temperature of 1g of pure water by 1C

Question 6

Celsius Scale

Answer 6

Temperature scale that sets the freezing point of water at 0 and its boiling point at 100

Question 7

Liter

Answer 7

Non SI unit of volume

Question 8

Joule

Answer 8

The SI unit of energy

Question 9

Weight

Answer 9

Force that measures the pull of gravity on a given mass

Question 10

Absolute zero

Answer 10

Zero point on the Kelvin scale equal to -273.15C

Question 11

Kilogram

Answer 11

SI base unit of mass

Question 12

Gram

Answer 12

Mass unit commonly used in chemistry

Question 13

Energy

Answer 13

The capacity to do work or to produce heat

Question 14

pico-

Answer 14

-12

10

Question 15

kilo-

Answer 15

-3

10

Question 16

micro-

Answer 16

-6

10

Question 17

Centi

Answer 17

-2

10

Question 18

measurement

Answer 18

A quantity that has both a number and a unit

Question 19

Scientific notation

Answer 19

A given number that is written as the product of two numbers a coefficient and a 10 raised to a power

Question 20

Accuracy

Answer 20

A measure of how close a measurement comes to the actual or true value of whatever is measured

Question 21

Precision

Answer 21

Measure of how close a series of measurements are to one another, irrespective of the actual value, repeatability

Question 22

Accepted value

Answer 22

Correct value for the measurement based on reliable references

Question 23

Experimental value

Answer 23

Value measure in the lab

Question 24

Error

Answer 24

Difference between experimental and accepted value

Question 25

%error

Answer 25

Error/accepted value x 100

Question 26

Significant figures

Answer 26

Things in a measurement that all of the digits that are known, plus a last digit is estimated

Question 27

Density

Answer 27

The ratio of a mass of an object to its volume

Question 28

Conversion factor

Answer 28

Ratio of equal measurements

Question 29

Dimensional analysis

Answer 29

A way to analyze and solve problems using units or dimensions of the measurements