nueawrs
K2Cr2O7 + 6FeSO4 + 7H2SO4 → Cr2(SO4)3 + 3Fe2(SO4)3 + K2SO4 + 7H2O.…
hopefullday
reveur01_
luoilelet
Blutexi
_cheesy04_
Haramsa
jhs_baohann
baithani
lovemonokuma
_tinhthi0102_
