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(D) In the reaction $2NaNO_3 \xrightarrow{\Delta} 2NaNO_2 + O_2$:$1$. The oxidation state of $N$ in $NaNO_3$ is $+5$.$2$. The oxidation state of $N$ i

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for either thermal combination redox reaction or thermal decomposition redox reaction.

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(D) In the reaction $2NaNO_3 \xrightarrow{\Delta} 2NaNO_2 + O_2$:$1$. The oxidation state of $N$ in $NaNO_3$ is $+5$.$2$. The oxidation state of $N$ in $NaNO_2$ is $+3$.$3$. The oxidation state of $O$ in $NaNO_3$ is $-2$,and in $O_2$ it is $0$.$4$. Since $N$ is reduced ($+5$ to $+3$) and $O$ is oxidized ($-2$ to $0$),this is a redox reaction.$5$. Because the reaction is triggered by heat and involves the breakdown of a single reactant into multiple products,it is classified as a thermal decomposition redox reaction.

Assign $A, B, C, D$ from the given type of reaction.
$2NaNO_3 \xrightarrow{\Delta} 2NaNO_2 + O_2$

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Assign $A, B, C, D$ from the given type of reaction.$2NaNO_3 \xrightarrow{\Delta} 2NaNO_2 + O_2$