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    "content": "硝酸光照分解的方程式\n$$4HNO_{3}overset{overset{}{{Delta}}}{=}4NO_{2} uparrow + O_{2} uparrow + 2HO_{2}$$\n氧化铁与硝酸的加热反应方程式\n$$FeO + 4HNO_{3}overset{overset{}{{Delta}}}{=}Fe(NO_{3})_{3} + 2H_{2} uparrow + NO_{2} uparrow$$\n氢气与氧气燃烧的现象如下图所示：\n$$2H_{2} + O_{2}overset{overset{}{text{燃烧}}}{=}2H_{2}O$$\n![](staticImages2de1bec230364d37980883db08c4d2cbmediaimage1.png)",
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    "content": "长春市2025年中考各批次录取最低控制线确定如下：\n第一批次城区普通高中 689分\n第二批次城区普通高中 590分\n第三批次城区普通高中 573分\n中等职业学校的综合高中班录取不低于第三批次城区普通高中最低控制线下60分。\n来源：长春市教育考试院",
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