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雖然A鈉和B鐵都可以跟氧氣反應，但差別在在化學性質
鈉的活性太強，碰到空氣或水會劇烈反應甚至爆炸，產物也有強腐蝕性，根本不能放在食品包裝裡。
Science
Junior High
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想確認A,B選項的差別！ 謝謝～
43. 下列哪個選項是脫氧劑發揮效果時發生的反應?
(A)4Na+O2→2Na2O →去除O2
椰
[類籃
A
(B)4Fe+3O2→2Fe2O3
炒菜餐,木酸掛簾
出滁
劉宮
(C)2NaHCO3→NaCO3+H2O+COz
(D) Na2CO3 + CaClk→2NaCl+CaCO3
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