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Write the reaction that represents the combustion of C6H12O2. Determine the oxidation state of P in...

Write the reaction that represents the combustion of C6H12O2. Determine the oxidation state of P in PO33-. Determine the oxidation state of C in CO3-2. What element is undergoing oxidation (if any) in the following reaction?CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g). Please explain and break down the necessary steps

Solutions

Expert Solution

a)

Write the reaction that represents the combustion of C6H12O2

C6H12O2 + O2 --> CO2+ H2O

Balance equation

C6H12O2 + 9O2 --> 6CO2+ 6H2O

b)

Determine the oxidation state of P in PO33-

O --> -2 (almost always O has -2 charge)

then

P + 3*(-2) = -3

P = -3 + 6 = +3

c)

Determine the oxidation state of C in CO3-2.

O --> -2 (almost always O will have a -2 charge)

The balance of charges:

C + 3(-2) = -2

C = -2+6 = +4

c)

What element is undergoing oxidation (if any) in the following reaction?CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g).

oxiddation ---> to lose electrons, or gain oxygens (by definition)

CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g).

Clearly, C is being oxidized

CH4 --> (C has -4 and H is +1 charged)

CO2 --> (C has +4 and O is -2 charged)

therefore

C --> -4 to + 4, its losing electrons, therefore oxidizing


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