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考点精析一、物质的检验(鉴定和鉴别)(1)物质的检验包括物质的鉴别和鉴定。(1)常见气体的检验:①O2:常用带火星的木条检验,若带火星的木条复燃,则该气体为O2;②H2:常检验其燃烧或还原氧化
Examine the test site 1. Material testing (identification and identification) (1) Material testing includes the identification and identification of substances. (1) Inspection of common gases: 1O2: commonly used wood strips with Mars, if the wood strips with Mars relight, then the gas is O2; 2H2: often test its combustion or reduction oxidation