What is the reaction occurring in
H2O + SO3 -> H2SO4
2. The attempt at a solution
Sorry, if this is dumb, I was confused about this question because I think its synthesis but I thought it only worked with elements? (Element A + Element B = Compound AB)
But then with this, I have water and SO3 which are already compounds becoming a bigger compound?
I don't think it really fits with the other types of reactions (single displacement, double displacement, decomposition and combustion all end up with something like A + B?), but then if it is synthesis does that mean that all compounds can also do this?