Write a balanced chemical equation for the decomposition of solid sodium sulfide in aqueous solution. A $$ \mathrm{Na}_{2} \mathrm{~S}_{(\mathrm{s})} \Rightarrow \mathrm{Na}_{(\mathrm{aq})}+\mathrm{S}_{(\mathrm{B})} $$ B $$ \mathrm{NaS}_{2(\mathrm{~B})}=\mathrm{Na}^{+}{ }_{(\mathrm{aq})}+2 \mathrm{~S}_{(\mathrm{aq})}^{2} $$ C $$ \mathrm{Na}_{2} \mathrm{~S}_{(\mathrm{aq})} ightarrow 2 \mathrm{Na}_{(\mathrm{s})}^{+}+\mathrm{S}_{( ext {(s) }}^{2} $$ D $$ \mathrm{Na}_{2} \mathrm{~S}_{(\mathrm{g})}-2 \mathrm{Na}^{+}(\mathrm{aq})+\mathrm{S}_{(\mathrm{aq})}^{2} $$

Question

Write a balanced chemical equation for the decomposition of solid sodium sulfide in aqueous solution. A $$ \mathrm{Na}_{2} \mathrm{~S}_{(\mathrm{s})} \Rightarrow \mathrm{Na}_{(\mathrm{aq})}+\mathrm{S}_{(\mathrm{B})} $$ B $$ \mathrm{NaS}_{2(\mathrm{~B})}=\mathrm{Na}^{+}{ }_{(\mathrm{aq})}+2 \mathrm{~S}_{(\mathrm{aq})}^{2} $$ C $$ \mathrm{Na}_{2} \mathrm{~S}_{(\mathrm{aq})} ightarrow 2 \mathrm{Na}_{(\mathrm{s})}^{+}+\mathrm{S}_{(	ext {(s) }}^{2} $$ D $$ \mathrm{Na}_{2} \mathrm{~S}_{(\mathrm{g})}-2 \mathrm{Na}^{+}(\mathrm{aq})+\mathrm{S}_{(\mathrm{aq})}^{2} $$

UpStudy AI · Accepted Answer

The balanced chemical equation for the decomposition of solid sodium sulfide ($$\mathrm{Na}_2\mathrm{S}$$) in aqueous solution is:

$$
\mathrm{Na}_2\mathrm{S}_{(\mathrm{s})} \rightarrow 2\, \mathrm{Na}^{+}_{(\mathrm{aq})} + \mathrm{S}^{2-}_{(\mathrm{aq})}
$$

This equation shows that solid sodium sulfide dissociates into two sodium ions ($$\mathrm{Na}^+$$) and one sulfide ion ($$\mathrm{S}^{2-}$$) when dissolved in water.

**Among the provided options, Option B is the closest representation, although it contains a slight notation error.** The correct formula should use $$\mathrm{Na}_2\mathrm{S}$$ instead of $$\mathrm{NaS}_2$$. Therefore, Option B should ideally be written as:

$$
\mathrm{Na}_2\mathrm{S}_{(\mathrm{s})} \rightarrow 2\, \mathrm{Na}^{+}_{(\mathrm{aq})} + \mathrm{S}^{2-}_{(\mathrm{aq})}
$$

**Correct Answer:**

$$
\boxed{\mathrm{Na}_2\mathrm{S}_{(\mathrm{s})} \rightarrow 2\, \mathrm{Na}^{+}_{(\mathrm{aq})} + \mathrm{S}^{2-}_{(\mathrm{aq})}}
$$
The correct balanced chemical equation for the decomposition of solid sodium sulfide in aqueous solution is: $$ \mathrm{Na}_2\mathrm{S}_{(\mathrm{s})} \rightarrow 2\, \mathrm{Na}^{+}_{(\mathrm{aq})} + \mathrm{S}^{2-}_{(\mathrm{aq})} $$ **Answer: Option B (corrected)**

Write a balanced chemical equation for the decomposition of solid sodium sulfide in aqueous solution.

A

B

C

D

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Write a balanced chemical equation for the decomposition of solid sodium sulfide in aqueous solution. A B C D