Kimyo xonasida rioya qilinishi lozim bo'lgan mehnat xavfsizligi qoidalari

NaOH+ fenolftalein =>__________________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________________b)CaCO3+HCl=>___________________________________________________________________________________________________________________________________________________________________________________________________d)Al2(SO4)3+BaCl2=>______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

FeCl3+AgNO3=>_____________________________________________________ ______________________________________________________________________ ______________________________________________________________________

2. 
   Mis sulfat eritmasidan mis oksid hosil qilish:
   

1.CuSO4+NaOH=>______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2.Cu(OH)2 (qizdirish)=> ______________________________________________________________________ ____________________________________________________________________________________________________________________________________________


To‘rt xil usul bilan rux xlorid tuzini hosil qilish:
1)Zn+2HCl=_____________________________________________________________________________________________________________________________
2)ZnO+2HCl=>_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________a)ZnSO4+NaOH=>_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ b)Zn(OH)2+2HCl=>____________________________________________________________________________________________________________________________________________________________________________________________

1. 
   ZnSO4+2HCl=>_____________________________________________________ ________________________________________________________________________________________________________________________________________
   
2.