The Space Shuttle's rocket boosters use hydrogen and oxygen, which combine to form water as fuel. The balanced

Question

chemical equation of this exothermic reaction is

a) 2H2(g) + O(g) ––> 2H2O(g)
b)2H2(g) +3O(g) ––>3H2O(g)
c)2H(g) + O(g) ––> 2H2O(g)
d)2H2(g) + O2(g)––> 2H2O(g)
i am not sure about this but i think is the number a

Answer 1

You are right not to be sure. The answer is d. This is because oxygen in its normal state is molecular oxygen, O2. The same goes for hydrogen H2.

However you can go back and kick your ill informed science teacher because the boosters on the shuttle use solid fuel.

Only the main engines use liquid hydrogen and oxygen fuel.

Answer 2

D

First off, O does not exist naturally, rather O2.

Second, the first equation does not balance. There are 2 oxygen on the right and only one on the left.