Question

Solid NaCl is produced by the reaction of metallic sodium with chlorine gas. This reaction is also accompanied by the release of heat energy. Which equation shows this reaction?
answer choices
2Na (s) + Cl2 (g) -->2NaCl (s) + heat
Na+ (aq) + Cl– (aq) --> NaCl (s) + heat
2NaCl (s) --> 2Na (s) + Cl2 (g) + heat
NaCl (s) + heat --> Na+ (aq) + Cl– (aq)

Answer 1

Solid $NaCl$ is produced by the reaction of metallic sodium with chlorine gas. So option 1 is correct.

2Na(s) + $Cl_{2}$(g) $\rightarrow$ 2NaCl(s) + heat

The stoichiometric equation is that. In order to make the metal volatile and capable of reacting with the chlorine gas, we often roast it well. It is an exothermic reaction all around.

These kinds of issues typically involve chlorine as a gas, hence the small "g" on its subscript.

In basic chemistry issues like this one, sodium is most frequently present in its solid state (as a reactant); thus, the small "s" in its subscript.

Table salt, which is also a solid substance, is what we get if we combine these two.

Learn more about exothermic reaction:

brainly.com/question/10373907

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