No.
Yes
No recommended, oven glass is designed for a specific purpose. It you what to put 'glass' on a burner, buy a 'pan' or product for that purpose
A heating stove can be kept on all night. Just make sure to keep anything flammable a safe distance away.
It is not safe to do this with a stove that was not designed for it.
Within 10 hours
No it is not safe to burn it.
Wear safety goggles and underneath the bunce and burner have a fire proof mat.
Be ready to light the burner as soon as the gas begins flowing through it.
how to be safe using a Bunsen Burner:1. never leave the flame unattended... especially when on the blue flame.2. always wear safety glasses.3. don't heat up anything metal because they will get very hot.4. don't let young children near the Bunsen burner when it's on.5. always have someone watch it.6. turn the gas off immediately when the flame goes out.
it is safe
Bunsen burner is not used to obtain hydrogen.
a long time probably 9-10 hours at the most if not longer