general chem knowledge Flashcards
gram formula is
the mass of one mole
soluble
the ability to dissolve in the solvent
insoluble
the inability to dissolve in the solvent
solute
the chemical that dissolves in the solvent
solvent
the chemical that dissolves the solute
solution
the mixture formed when a solute dissolves
solubility
a measure of how well as solute will dissolve in a particular solvent
saturated
a solution into which as much solute as possible has been dissolved
test for carbon dioxide
can turn lime water cloudy
test for hydrogen
making a lit splint pop
test for oxygen
relights a glowing splint
group 7 are
haolgens
group one are
alkali metals
group 8/0
nobel gases
charge +1
found in the nucleus
mass of 1
proton
charge -1
found in the outer shell
unneligible mass
electron
charge 0
found in the nucleus
mass of 1
neutron
a positive charge on an ion
loss of an electron
a negative charge on an ion
gained an electron
isotopes
have the same atomic number but different mass numbers
why is the relative atomic mass rarely a whole number
it is the average mass of all the isotopes of an element
what is a spectrometer
identifies the different isotopes and their % abundance in a sample of an element
the minimum energy required for a reaction is called
activation energy
components required for a reaction to occur
sufficient energy and correct orientation
all reactions are………………at the start
quickest
double the concentration means
double the product
ammonium test
turns damp red litmus paper or damp universal indicator paper blue.
