Question

Va rogggggggggg ❤️❤️❤️​

Answer 1

Răspuns:

H2SO4 acid sulfuric

MH2SO4 =2×1+32+4×16=98g/mol

R. atomic H:S:O=2:1:4

R. masa H:S:O=2:32:64=1:16:32

HClO acid hipocloros

MHClO=1+35,5+16=52,5g/mol

R.atomic H:Cl:O=1:1:1

R. masă H:Cl:O=1:35,5:16

HClO4 percloric

MHClO4 =1+35,5+4×16=100,5g/mol

R. atomic H:Cl:O=1:1:4

R. masa= H: Cl: O=1:35,5:64

Mn3(PO4)2 fosfat de mangan

MMn3(PO4)2=3×55+2×31+8×16=355g/mol

R.atomic Mn:P:O=3:2:8

R.masa Mn:P:O=165:62:128

H2C2O4 acid oxalic

MH2C2O4=2×1+2×12+4×16=90g/mol

R.atomic H:C:O=2:2:4=1:1:2

R.masa H:C:O=2:24:64=1:12:32