A.nB=mB/MB B.mB=nB/MB C.MB=mB×nB D.nB=mB×MB
A.0.2g B.58.5g/mol C.0.2mol D.11.7g
A.離子鍵 B.非極性共價鍵 C.極性共價鍵 D.配位鍵