用化学用语表示::@:v6q(G8U/M0x/E
(1)4个钙离子(R)n6n2L+t)D+O ;:@:v6q(G8U/M0x/E
(2)氢氧化亚铁0d:F6u:S;R3?2m5n2l.M6S-E:L ;:@:v6q(G8U/M0x/E
(3)3个五氧化二磷分子 -N+[/[6a-N-h1t2d6B,D,g,w8i,_.M'K)X*J ;:@:v6q(G8U/M0x/E
(4)碳酸钾;T:H8Z7y2p;U3?)S)I-_ 。:@:v6q(G8U/M0x/E