Classify the following reactions. a. hno3(aq)+nh3(aq)→nh4no3(aq) b. 2cu(s)+o2(g)→2cuo(s) c. nacl(aq)+agno3(aq)→nano3(aq)+agcl(s ) d. 2lioh(aq)+h2so4(aq)→li2so4(aq)+2h2o (l) e. cacl2(aq)+k2co3(aq)→2kcl(aq)+caco3( s) redox, neutralization or percpitation?

A. Neutralization

B. Redox

C. Precipitation

D. Neutralization

E. Precipitation

Explanation:

In order to classify reactions we need to consider the following criteria:

In a neutralization reaction, an acid reacts with a base.In a redox reaction, one species oxidizes and another species reduces.In a precipitation reaction, an insoluble solid is formed and it precipitates.

A. HNO₃(aq) + NH₃(aq) → NH₄NO₃(aq)

Neutralization. HNO₃ is an acid that reacts with NH₃ that is a Bronsted-Lowry base.

B. 2 Cu(s) + O₂(g) → 2 CuO(s)

Redox. Cu oxidizes from Cu to Cu²⁺ and O reduces from O₂ to O²⁻.

C. NaCl(aq) + AgNO₃(aq) → NaNO₃(aq) + AgCl(s)

Precipitation. Insoluble AgCl is formed.

D. 2 LiOH(aq) + H₂SO₄(aq) → Li₂SO₄(aq) + 2H₂O(l)

Neutralization. H₂SO₄ is an acid that reacts with LiOH, a base.

E. CaCl₂(aq) + K₂CO₃(aq) → 2 KCl(aq) + CaCO₃(s)

Precipitation. Insoluble CaCO₃ is formed.

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