Question

the reaction of h2 gas with oxygen to form water is a type of reaction.
a.combustion reaction
b.exothermic reaction
c.all of these.
d.refox reaction
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Answer 1

Answer:

The reaction of H2 gas with Oxygen to form water is a (D) REDOX REACTION.

Explanation:

Hydrogen in oxidized and oxygen is reduced. H2-->2H + Oxygen O2-->2O.

Answer 2

Answer:

endothermic  vs exothermic reactions

Explanation:

endothermic = endothermic reactions take in energy and the temperature of the surroundings decreases. exothermic = Exothermic reactions transfer energy to the surroundings and the temperature of the surroundings increases.                               THANKS