Chemistry 08 review Flashcards
What is matter
Anything that has mass and takes up space
Solid to liquid
Melting
Liquid to solid
solidification
Liquid to gas
evaporation
Gas to liquid
condensation
Gas to solid
Deposition
Solid to gas
Sublimation
Exothermic
Heat or light is GIVEN OFF
E.G nuclear reaction, lighting a match
Endothermic
Heat or light is ABSORBED
E.G Evaporation, cooking an egg
Two types of mixtures
Homogenous and Heterogeneous
Two types of pure substances
Elements and compounds
Mixtures
Not chemically combined
can be separated
E.G trail mix
Homogenous mixtures
Homo=same
E.G juice, jello, salt water
Heterogeneous mixture
Hetero=different
E.G Snow globes, salad dressing, trail mix
Pure substances
Same material
Same properties
List three examples of Physical properties
Colour
*Texture
*Hardness
*Solubility
*Density
*Melting Point
*Boiling Point
*Malleability
list three examples of Chemical Properties
*Reactivity (or lack of)
*Flammability/combustibility
*Reactivity with acids or oxygen
Elements
Cannot be broken down
Unique physical/chemical properties
only made up of 1 type of atom
118 unique elements
Diatomic Elements
element that is bonded to itself
two atoms
Name all 7 diatomic Elements
Iodine
Nitrogen
Oxygen
Fluorine
Hydrogen
Bromine
Chlorine
Compounds
Two or more elements that have chemically bonded
Different properties than the elements it’s made of
Chemical reactions create or break apart compounds
