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Sia

Question
Chemistry
Posted 4 months ago

Which of the following chemical equations represents a neutralization reaction?

Choose 1 answer:
(A) Ca(OH)2(aq)+H2SO4(aq)2H2O(l)+CaSO4(s)\mathrm{Ca}(\mathrm{OH})_{2}(a q)+\mathrm{H}_{2} \mathrm{SO}_{4}(a q) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)+\mathrm{CaSO}_{4}(s)
(B) Ca(OH)2(aq)+Na2SO4(aq)2NaOH(aq)+CaSO4(s)\mathrm{Ca}(\mathrm{OH})_{2}(a q)+\mathrm{Na}_{2} \mathrm{SO}_{4}(a q) \rightarrow 2 \mathrm{NaOH}(a q)+\mathrm{CaSO}_{4}(s)
(c) BaCl2(aq)+H2SO4(aq)BaSO4(s)+2HCl(aq)\mathrm{BaCl}_{2}(a q)+\mathrm{H}_{2} \mathrm{SO}_{4}(a q) \rightarrow \mathrm{BaSO}_{4}(s)+2 \mathrm{HCl}(a q)
(D) 2H2(g)+O2(g)2H2O(l)2 \mathrm{H}_{2}(g)+\mathrm{O}_{2}(g) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)
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Answer from Sia
Posted 4 months ago
A
Key Concept
Neutralization Reaction
Explanation
A neutralization reaction occurs when an acid reacts with a base to produce water and a salt. In option (A), Ca(OH)2 \mathrm{Ca}(\mathrm{OH})_{2} (a base) reacts with H2SO4 \mathrm{H}_{2} \mathrm{SO}_{4} (an acid) to produce H2O \mathrm{H}_{2} \mathrm{O} (water) and CaSO4 \mathrm{CaSO}_{4} (a salt).

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