elements to compounds Flashcards
(26 cards)
Mass per unit volume
density
Resistance of a material to being scratched
hardness
Compounds that contain carbon
organic
Compounds that do not contain carbon
inorganic
The name of the commonly used hardness scale is:
Mohs
Hardness is indirectly related
strength of chemical bonds
is mohs scale linear or not
not
softest material
talac
hardest material
diamond
what is the definition of density
mass / volume
usual units of density
g / cm^3
As a substance changes phase from gas to liquid to solid:
its density generally increases
All man-made and most carbon-based compounds are
organic
the starting materials completely lose their properties to form new substances
chemical change
a change from one state of matter to another
phase change
a change in shape, size, or physical characteristics but remaining same substance
physical change
a change in shape, size, or physical characteristics but remaining same substance
physical change
a pure compound consists of exactly the same elements in the exact same ratios by mass
Law of Constant Composition
the starting materials completely lose their properties to form new substances
chemical change
a change from one state of matter to another
phase change
a change in shape, size, or physical characteristics but remaining same substance
physical change
a pure compound consists of exactly the same elements in the exact same ratios by mass
Law of Constant Composition
The smallest unit of a compound
molecule
The process of passing electricity through water to chemically separate it into hydrogen and oxygen is called what?
electrolysis
