ionic equations and half equations Flashcards
whats a ionic equation
An ionic equation shows how ions react together leaving out any ions which do not take part in
the reaction
whats the ionic equation for a acid reacting with a alkali (neutralisation)
H+ + OH- → H₂O.
whats the ionic equation for this displacement reaction
magnesium + copper(II) sulfate → magnesium sulfate + copper
Mg + Cu2+ → Mg2+ + Cu
whats the half equation for sodium
Na → Na+ + e-
what is the half ionic equation for chlorine
Cl + e- → Cl-
Cl₂ + 2e- → 2Cl
what do you leave out in ionic equations
the ions that dont take part in the reaction
if a ion appears on both sides of a equation in the same state what should you do
it should not be apart of the equation
whats the ionic equation for chlorine when its a atom
sodium?
cl + E- = cl-
na+ = na+ + e-
whats the half equation for chlorine molecule
cl2 + 2e- =2cl-
whats the half equation for iodine
i + e- = i-