chemistry Flashcards
(18 cards)
what is avagdros constant
the Avogadro constant is the number of atoms, molecules or ions in a mole of a given substance.
what is the numerical form of avagadros constant
23
6.02 x 10
what is the number of moles formula
number of moles = mass
Mr
what is the atomic number
atomic number represents the number of neutrons in the atom
what is electrolysis
electrolysis is a chemical reaction that splits up compounds using electricity
what is the negatively charged electrode in electrolysis called
the cathode
what is the positively charged electrode called
the anode
what electrode does positively charged ions move towards
the cathode
what electrode does negatively charged ions move to
the anode
what ion gains electrons from the negatively charged cathode
positive ions
what ions loose electrons at the positively charged anode
negative ion
why are metal ions positively charged
because the atoms looses electrons
why are non metal ions negatively charged
because the atoms gain electrons
what electrode is non metal
anode
what electrode is metal
cathode
what is an electrolyte
liquid or solution that contains that contains ions and so can conduct electricity
what are the two other names for the term electrolytes
liquid or solution
any atoms that ends in ‘ide’ is a positive electrode (anode)
