天气预报15天查询> 其他> 如何检验一瓶气体是氧气

如何检验一瓶气体是氧气

更新时间: 2020-09-16 00:00:00     

氧气是一种助燃性气体,能使带火星的木条复燃,其他气体不能。

因为氧气具有助燃性,能够支持燃烧,可以使带火星的木条复燃.可用一根带火星的木条插入集气瓶中,发现木条复燃,就证明是氧气。

关键词: 如何 检验 气体 氧气

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-180078/ | 耗时:0.9272 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=180078 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=180078 LIMIT 0,1
select * from tbl_Articles_sphinx where id=180078 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1047321,1076764,1051677,1079051,1112398,1062130,1086608,1070668,1046706,1067423,1057816,1070868,1068264,1042959,1083421,1068358,1065107,1091645,1063213,1051425,1044735,999794,1066810,1074562,1073526,1074744,1068558,1078737,1072443,1062140) ORDER BY field (ArticleID,1047321,1076764,1051677,1079051,1112398,1062130,1086608,1070668,1046706,1067423,1057816,1070868,1068264,1042959,1083421,1068358,1065107,1091645,1063213,1051425,1044735,999794,1066810,1074562,1073526,1074744,1068558,1078737,1072443,1062140)