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Flashcards in Measurement & Problem Solving Deck (17):
1

Define chemistry

the study of matter and the changes it undergoes

2

Define matter

anything that has mass and occupies space

3

List and identify the Classifications of Matter

A image thumb
4

Describe the difference b/w mass and weight

mass is measured relatively to a know standard therefore it doesn't change regardless of where it is located

unlike the concept of weight, where weight is the effect of gravity on an object therefore weight changes depending on where it is

5

List and define the changes in matter

Physical change- type of chnage does not result in the formation of a new substance

Chemical Change - type of change results in the formation of a new substance 

6

Define and provide an example of a physical property 

Physical property is a property that when studied doe snot change the identity of the substance (denisty)

 

7

Define an intensive and extensive property

intensive property is a property that does not depend on the quantity of a substance that you have 

extensive property is a property that depends on the amount of substance you have

8

List and briefly explain the basic states of matter

Solid, Liquid, Gas

state is influenced by how close the particles are to eahc other

9

State the changes of states

http://s3.amazonaws.com/engrade-myfiles/4095508632683634/Change_of_state_of_matter.jpg

10

Define measurement and explain its reliability 

An activity conducted to determine the quantity of matter

Reliability of measurement depends on the measuring device and the person conducting the measurement  

11

Define significant figures

digits that give reasonable reliable information 

12

Define temperature (2)

Could be defined as the degree of heat content (how hot or cold something is

a measure of the average kinetic energy of the molecule in a system 

13

Define kinetic and potential energy 

kinetic is the energy of motion

potential is the energy at rest

14

Name the main units used for temperature and the formulas used to gte to one onto the next

C (degrees celcius) , F (degrees farenhiet) , K (Kelvin scale)

F = C + 273

C = F - 32 / 1.8

K = C + 273 

15

Define density

density is the mass per unit volume of an object (d =  m/v)

16

Define dimensional analysis

a method of using a convertion factor to go from one unit to the next

17

Define specific heat 

(equation)

this is the nergy required to raise the temperature of 1.00g of substance by one degree celsius

Q = mc(delta)T