Blast Off

What is the importance of an Oxidizer for rocket blast off?

What is oxidizer and what is it mixed with?

An oxidiser is a substance which will remove electrons from another substance basically.

In a rocket, an oxidiser is mixed with a fuel, for example

hydrazine (fuel) can be mixed with concentrated hydrogen peroxide (oxidiser) to give an extremely powerful rocket.

You could use air (oxygen) as the oxidiser, but rockets generally user more powerful oxidising agents in order to give a more energetic reaction that produces more thrust.

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