Question

balance the following equation:
_c₂h₄+ _o₂→_co₂+ _h₂o
when the equation is properly balanced, the correct coefficients are, respectively

Explanation:

Step1: Balance carbon atoms

There are 2 carbon atoms in \(C_2H_4\). So, we put 2 in front of \(CO_2\).
\(C_2H_4+\ O_2
ightarrow2CO_2+\ H_2O\)

Step2: Balance hydrogen atoms

There are 4 hydrogen atoms in \(C_2H_4\). So, we put 2 in front of \(H_2O\).
\(C_2H_4+\ O_2
ightarrow2CO_2 + 2H_2O\)

Step3: Balance oxygen atoms

On the right - hand side, there are \(2\times2 + 2\times1=6\) oxygen atoms. So, we put 3 in front of \(O_2\).
\(C_2H_4+3O_2
ightarrow2CO_2 + 2H_2O\)

Answer:

1, 3, 2, 2