View in Telegram
Kimyo milliy sertifikat
H2SO4•0,5SO3 tarkibli 27,6 gr oleumni neytrallash uchun 100 gr natriy gidroksid eritmasi sarflandi. Natriy gidroksid eritmasining foiz konsentratsiyasini toping
Anonymous Quiz
36
24
40
20
179 answered
Share
Love Center - Dating, Friends & Matches, NY, LA, Dubai, Global
Find friends or serious relationships easily
Start