21 true or false 2 points\nthe reaction below would be classified as an oxidation - reduction…

21 true or false 2 points\nthe reaction below would be classified as an oxidation - reduction reaction.\nc₃h₈(g) + 5o₂(g) → 3co₂(g) + 4h₂o(ℓ)\ntrue\nfalse

21 true or false 2 points\nthe reaction below would be classified as an oxidation - reduction reaction.\nc₃h₈(g) + 5o₂(g) → 3co₂(g) + 4h₂o(ℓ)\ntrue\nfalse

Answer

Explanation:

Step1: Determine oxidation - states

In $C_3H_8$, hydrogen has an oxidation - state of +1. Let the oxidation - state of carbon be $x$. Then $3x + 8\times(+1)=0$, so $x=-\frac{8}{3}$. In $CO_2$, oxygen has an oxidation - state of -2. Let the oxidation - state of carbon be $y$. Then $y+2\times(-2) = 0$, so $y = + 4$. Carbon's oxidation state changes from $-\frac{8}{3}$ in $C_3H_8$ to +4 in $CO_2$.

Step2: Check for reduction

In $O_2$, oxygen has an oxidation - state of 0. In $CO_2$ and $H_2O$, oxygen has an oxidation - state of -2. Oxygen's oxidation state changes from 0 in $O_2$ to -2 in $CO_2$ and $H_2O$.

Step3: Define redox reaction

An oxidation - reduction (redox) reaction is a reaction in which there are changes in oxidation states. Since carbon is oxidized and oxygen is reduced, this is a redox reaction.

Answer:

True