If I combine HCl + Zn ----> ZnCl 2 + H 2 in a test tube then invert a second test tube then place a burning wooden splint into the mouth of the inverted test tube what is the equation that proves there was a presence of hydrogen?
2006-12-18 12:53:25 · 6 answers · asked by bleakxentity 1 in Science & Mathematics ➔ Chemistry
that is not equation.when u put hcl in the testube containing zinc, bubbles will emerge which shows that gas is evolving.when u invert another testube on it the gas will be collected in the inverted testube.now when u place a burning wooden splint it would get off with a plopping sound which shows that h2 was present in the testube.
2006-12-19 00:10:08 · answer #1 · answered by sonam g 2 · 0⤊ 0⤋
2 H2 + 02 = 2 H20
2006-12-18 20:56:20 · answer #2 · answered by Steve A 7 · 0⤊ 0⤋
It's not really an equation. There will be a popping sound in the presence of hydrogen.
2006-12-18 20:57:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋
hydrogen gas is flammable in nature hydrogen itselfs burn hence burning wooden splint will cause hydrogen gas to catch fire & hydrogen gas will burn causing a very bright flame
2006-12-19 01:30:21 · answer #4 · answered by kainesh p 2 · 0⤊ 0⤋
whaen an acid reacts with a metal it produces salt and hydrogen gas. This is the phenemonon you have observed.
2006-12-20 03:22:33 · answer #5 · answered by murali basa 1 · 0⤊ 0⤋
equation is a sentece of equality in which one side belongs to reactants and other sides belong to products.
2006-12-19 05:02:17 · answer #6 · answered by Anonymous · 0⤊ 0⤋