Question

A burning match stick is shown to a jar containing hydrogen and another jar containing oxygen. What change is there in your observations?

Ans: When a burning match stick is shown to hydrogen gas, the gas burns with a pop sound. If the burning stick is shown to oxygen gas, the match stick flars up.

Answer 1

U answered already then why u put question

Answer 2

Answer:

The observable change will be:-

Explanation:

When a burning match stick is shown to hydrogen gas, the gas burns with a pop sound. If the burning stick is shown to oxygen gas, the match stick flars up.