Question

3. Mr (Li,O)=
4. Mr (Ba3(PO4)2) =
5. Mr (Ca(OH)₂) =
6. Mr (HC1O4) =

Answer 1

Объяснение:

Mr(LiO)=7+16=23

Mr(Ba3(PO4)2)= 137×3+31×2+16×8=411+62+128=601

Mr(Ca(OH)2)= 40+16×2+1×2=40+32+2=74

Mr(HClO4)= 1+ 35,5+16×4= 36,5+64=100,5