Need chemistry help with combustion reactions

Nov 18th, 2015
Anonymous
Category:
Biology
Price: $5 USD

Question description

1 which of the following is a combustion reaction

4Fe + 3O2-------> 2Fe2O3

2Al+ N2--------> 2AlN

2AgNO3 + H2S------->Ag2S +2NHO3

2H2O----->2H2+O2

2 what must methane be combined with to undergo a combustion reaction

energy

oxygen

hydrogen

carbon dioxide

3 when wood burns in the prescence of pxygen in what form is energy released

hydrogen

heat and light

more oxygen

water vapor

4 most of the substance we use for fuel are hydrocarbons that burn easily in the presence of oxygen which 2 elements are found in these substances

carbon and oxygen

hydrogen and carbon

hydrogen and oxygen

5 which of the following generalized equations represent a combustion reaction

A + oxygen---> energy

A+B--->AB

fuel+ energy--->oxygen

AB--->A+B



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