检验氢气
Test for hydrogen Bring a burning splint near the gas; if it burns with a pale blue flame (or a slight popping sound), it is likely hydrogen.
CSCA 化学 考试术语
Test for hydrogen Bring a burning splint near the gas; if it burns with a pale blue flame (or a slight popping sound), it is likely hydrogen.
CSCA 化学 考试术语