Question

select the correct compound. reactants undergo chemical reaction to form products. this chemical equation represents one such reaction. the coefficient for one of the reactants or products is incorrect. which part of the chemical equation is incorrect? 2c₄h₁₀ + 10o₂ → 8co₂ + 10h₂o

Explanation:

Step1: Check oxygen - atom balance

For the left - hand side of the reaction $2C_4H_{10}+10O_2$, the number of oxygen atoms from $O_2$ is $10\times2 = 20$. For the right - hand side, in $8CO_2 + 10H_2O$, the number of oxygen atoms is $(8\times2)+10=16 + 10=26$. The oxygen atoms are not balanced.

Step2: Balance the chemical equation

The balanced equation for the combustion of butane $C_4H_{10}$ is $2C_4H_{10}+13O_2
ightarrow8CO_2 + 10H_2O$. So the incorrect part is the coefficient of $O_2$.

Answer:

The coefficient of $O_2$ (which is 10 in the given equation instead of 13) is incorrect.