化学方程式测试
一、填空题
1.用化学用语表示:
①氮气____________ ②水银____________ ③三个铝离子____________
④硝酸根离子____________ ⑤负二价的硫____________ ⑥氯化亚铁____________
2.书写下列方程式,并说明其反应类型:
(1)电解水制取氢气:________________________________________________( )
(2)氢气还原氧化铜:________________________________________________( )
(3)细铁丝在氧气中燃烧:____________________________________________( )
(4)氧化汞受热分解:________________________________________________( )