review for 1st test

Question 1

accuracy

Answer 1

Accuracy refers to how close a measurement is to the true or accepted value

Question 2

precision

Answer 2

Precision refers to how close measurements of the same item are to each other

Question 3

absolute zero

Answer 3

0 in the most literal form

Question 4

density

Answer 4

mass divided by volume

Question 5

signifigant figure

Answer 5

every non zero number
zeros between significant figures

trailing zeros if decimal point is their.

Question 6

tempature

Answer 6

how cold or hot something is

Question 7

weight

Answer 7

the amount of quantity or heaviness of mass

Question 8

pure chemistry

Answer 8

chemistry for chemistry’s sake

Question 9

applied chemistry

Answer 9

information used to create martials

Question 10

chemsitry

Answer 10

he branch of science that deals with the properties, composition, and structure of elements and compounds, how they can change, and the energy that is released or absorbed when they change.

Question 11

what are the two parts of measurement

Answer 11

unit number

Question 12

why do we care about sig figs

Answer 12

shows how precise a numbers is