Question

Is the following equation balanced? NH2CH2COOH (s) + 9/4 O2 --> 2 CO2 (s) + 5/2 H2O (l) + 1/2 N2 (g)

Answer 1

The correct equation is `"4NH"_2"CH"_2"COOH(s)" + "9O"_2("g")"` `rarr` `"8CO"_2("g") + 10"H"_2"O"("l")" + 2N"_2"` .

Explanation:

It is not properly balanced. A balanced equation should have only whole number coefficients.

`"NH"_2"CH"_2"COOH(s)" + "9/4O"_2("g")"` `rarr` `"2CO"_2("g") + "5/2H"_2"O"("l") + "1/2N"_2("g")"`

The common denominator of the fraction coefficients is 4. Multiply all coefficients times 4.

`"4NH"_2"CH"_2"COOH(s)" + "9O"_2("g")"` `rarr` `"8CO"_2("g") + (5*4)/2"H"_2"O"("l")" + (1*4)/2N_2`

Simplify the fractions on the right side of the equation.

`"4NH"_2"CH"_2"COOH(s)" + "9O"_2("g")"` `rarr` `"8CO"_2("g") + 20/2"H"_2"O"("l")" + 4/2N_2`

Reduce the fractions on the right side.

`"4NH"_2"CH"_2"COOH(s)" + "9O"_2("g")"` `rarr` `"8CO"_2("g") + 10"H"_2"O"("l")" + 2N"_2"`