Which are the possible reactants of these products? ? 2h2o + o2 a. h2o b. h2o2 c. 2h2o2 d. 2h2o + o2

Option (C) is the correct answer.

Explanation:

When we write a chemical reaction equation then reactants are written on left hand side whereas products are written on right hand side.

And a chemical reaction in which a compound dissociates to given two products is known as a decomposition or dissociation reaction.

For example,

Therefore, is the reactant and both and are the products.

Thus, we can conclude that out of the given options are the possible reactants of these products.

it's filtration, but this is an assumption so my apologies if i got this

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.