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【简答题】
按要求完成下列化学反应方程式，并在括号内注明化学反应的基本类型。 （1）乙醇充分燃烧 ； （2）用石灰乳（主要成分为氢氧化钙）粉刷墙壁能形成坚硬的墙面 ； （3）铜丝浸入硝酸银溶液中 ，（ ）反应； （4）在浓盐酸中加入足量的碳酸钠溶液 。
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A.
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B.
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A.
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B.
劳动保护费
C.
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D.
工资性补贴
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