2H2 + O2 -- 2H2O can be classified as what type of reaction?

A. Both synthesis and combustion.

B. Only synthesis.

C. Only combustion.

D. It cannot be classified.

Question

2H2 + O2 --> 2H2O can be classified as what type of reaction?

A. Both synthesis and combustion.
	
B. Only synthesis.
	
C. Only combustion.
	
D. It cannot be classified.

joannablackwelder · Answer

http://chemistry.about.com/od/chemistryglossary/g/Combustion-Reaction-Definition.htm

joannablackwelder · Answer

http://chemistry.about.com/od/chemicalreactions/a/synthesis-reaction.htm What do you think?

anonymous · Answer

Well, I put Combustion last time and I got it wrong

joannablackwelder · Answer

Ok. It is combustion, but it is also synthesis.

joannablackwelder · Answer

Two things reacting to form one product is a synthesis reaction.

anonymous · Answer

What's the difference between the two? they look the same?

joannablackwelder · Answer

They look just the same in this instance. But one of the reactants of a combustion reaction must be oxygen and one of the products must be heat (exothermic).