【化学题】氧气的验满:用带火星的木条______________;检验:用带火星的木条___________.
题目
【化学题】氧气的验满:用带火星的木条______________;检验:用带火星的木条___________.
答案
氧气的验满：用带火星的木条【放在集气瓶口,如果木条复燃,说明收集满氧气】；检验：用带火星的木条【放在集气瓶内,如果木条复燃,说明集气瓶内装的是氧气】.
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