2h2o + o2 --> 2h2o can be classified as what type of reaction? a) only combustionb) only synthesisc) something other than synthesis or combustiond) both synthesis and combustion!

It's definitely synthesis because two reactants come together to form one product.

However its not combustion as there is no hydrocarbon reactant and no carbon dioxide product.

I believe the answer is B.

0.863333

86%

hope this