Chemical and Physical Properties and Changes

Question 1

Physical Changes (nothing new)

Answer 1

• phase change
• dissolution(dissolving)
• tear/grind/crush

Question 2

Chemical Changes (new stuff is formed)

Answer 2

• Change of colour
• Heat energy is released
• Production of gas/bubbling/odor
• Formulation of a solid/precipitation
  -LE or EE produced

Question 3

Physical Properties

Answer 3

-Colour
-Odour
-Hardness
-State (SLG)
-Temperature
-Mass

Question 4

Characteristic physical properties deffiniton

Answer 4

can be used to identify the substance (ex: finger prints, dental records)

Question 5

Characteristic physical properties

Answer 5

-Solubility
-Density
-Melting point
-Boiling point
-Conductivity
-Ferromagnetism

Question 6

Chemical property deffiniton

Answer 6

describes the ability of the chemical to undergo a specific chemical change (how chemical reacts with something else)

Question 7

Chemical Properties

Answer 7

-Flammability(inflammability)
-Toxicity
-Acidity
-Reactivity/non-reactivity
-Digestion(change into other form)
-Ability to oxides(rust=slow –> burn=fast)

Question 8

S to G

Answer 8

sublimation

Question 9

S to L

Answer 9

melting/fusion

Question 10

L to G

Answer 10

evaporation or boil/ vaporization

Question 11

G to L

Answer 11

condensation

Question 12

L to S

Answer 12

freezing/solidification

Question 13

G to S

Answer 13

sublimation (deposition)