2h2 + o2 --> 2h2o can be classified as what type of reaction?

Combustion reaction
Key: O2
O2 is normally in a chemical formula when you are used to burn anything, so basically, anything with O2 involves burning.

It's Synthesis Reaction
A+B>C

Combustion reaction produces carbon dioxide and water. This equation doesn't contain CO2

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

2licl + 3o2 i yook the test and it was correct.