Hydrogen burns explosively. That's why Lead Acid batteries are never tested for water level with live flame.
If there is oxygen present it will burn (explosively)
The compound oxygen and hydrogen can combine explosively to form water.
Hydrogen and oxygen combine explosively in a single reaction.
Pure Hydrogen (H2) gas will explosively ignite in the presence of fire.
Hydrogen is not inert it reacts explosively with Oxygen to create water H2O
Hydrogen and oxygen combine explosively in a single reaction.
No. It's very different. For a start, both hydrogen and oxygen are gases under ordinary conditions but water is a fairly dense liquid. Hydrogen burns explosively. Things burn vigorously in oxygen. Water can be used to extinguish many types of fires. And so it goes.
Silicon may certainly burn, but whether explosively I don't know.
Nothing is left because hydrogen is an element, from which only water is formed when burning (explosively) with oxygen.
All stars 'burn' hydrogen
helium does not burn, hydrogen will burn in air
Hydrogen gas is highly flammable; you can make it burn with the slightest spark.