using Dr Collins have i found a mistake?

[jackal head]

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2 H2 + 02 -> 2H20 is an example of a ________ rxn

a) combusion
b) double displacement
c) synthesis
d) decomposition

isn't this synthesis? The explanation is that all rxns w/ O2 can be viewed as combustion, can someone confirm this?

 

[mastermindsp]

Combustion RXNS: When a compound containing carbon, hydrogen, and oxygen is burned in the
presence of excess oxygen, the products are carbon dioxide and water.

By Definition: The products of a combustion RXN are CO2 and H2O.

 

[jackal head]

Combustion RXNS: When a compound containing carbon, hydrogen, and oxygen is burned in the
presence of excess oxygen, the products are carbon dioxide and water.

By Definition: The products of a combustion RXN are CO2 and H2O.

the study guide says it's a combustion, wtf? Like you said, I don't see any CO2 products nor any carbon containing compounds, the explanation given by the study guide seems sketchy

 

[mastermindsp]

I said co2 and h2o...the product is h2o so it is combustion

 

[pharmRxn]

the pcat will have numerous tricky questions, so you better know your concepts very well and all the exception to the rules. i am sure they will be covered.

 

[nonzerosum]

ya, think about it. you're burning hydrogen gas! it makes sense!

I've got a related question, my HS teacher told me that all combustion rxns with Carbons will have scoot/C as a product. Yet if you were to burn say glucose, you would get scoot aka C ???