Question

ajutorrr masa moleculara ale : hidroxidului de aluminiu, hidroxid de bariu, bromura de magneziu , carbonat de potasiu si sulfura de aluminiu URGENTTTT!!!!$chimie$

Answer 1

MAl(oh)3=27+3(16+1)=27+51=78g/mol
MBa(oh)2=137+2(16+1)=137+34=171g/mol
MMgBr2=24+2*80=184g/mol
MK2Co3=39*2+12+16*3=78+12+48=138g/mol
MAl2S3=27*2+32*3=54+96=150g/mol