Classify the following reactions: HNO3 (aq) + NH3 (aq) →NH4NO3 (aq) + H2O (l) 2Cu (s) + O2 (g) →2CuO (s) NaCl (aq) + AgNO3 (aq) →NaNO3 (aq) + AgCl (s) 2LiOH (aq) + H2SO4 (aq) →Li2SO4 (aq) + 2H2O (l) CaCl2 (aq) + K2CO3 (aq) →2KCl (aq) + CaCO3 (s) Drag the items to their respective bins. View Available Hint (s)

Question

Marisol Davila

Chemistry

21 September, 15:27

Classify the following reactions: HNO3 (aq) + NH3 (aq) →NH4NO3 (aq) + H2O (l) 2Cu (s) + O2 (g) →2CuO (s) NaCl (aq) + AgNO3 (aq) →NaNO3 (aq) + AgCl (s) 2LiOH (aq) + H2SO4 (aq) →Li2SO4 (aq) + 2H2O (l) CaCl2 (aq) + K2CO3 (aq) →2KCl (aq) + CaCO3 (s) Drag the items to their respective bins. View Available Hint (s)

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Pepsi · Answer 1

- HNO3 (aq) + NH3 (aq) →NH4NO3 (aq) + H2O (l) : neutralization.

- 2Cu (s) + O2 (g) →2CuO (s) : redox.

- NaCl (aq) + AgNO3 (aq) →NaNO3 (aq) + AgCl (s) : precipitation.

- 2LiOH (aq) + H2SO4 (aq) →Li2SO4 (aq) + 2H2O (l) : neutralization.

- CaCl2 (aq) + K2CO3 (aq) →2KCl (aq) + CaCO3 (s) : precipitation.

Explanation:

Hello,

Based on the given reaction and their classification as redox, neutralization or precipitation, one obtains:

- HNO3 (aq) + NH3 (aq) →NH4NO3 (aq) + H2O (l) : neutralization as ammonia which is a base, is reacting with nitric acid which is an acid to yield ammonium nitrate which is a base.

- 2Cu (s) + O2 (g) →2CuO (s) : redox as both copper's and oxygen's oxydation states change by increasing by 2 and reducing by 2 respectively.

- NaCl (aq) + AgNO3 (aq) →NaNO3 (aq) + AgCl (s) : precipitation as the inital reactants are soluble but the yielded silver chloride is not.

- 2LiOH (aq) + H2SO4 (aq) →Li2SO4 (aq) + 2H2O (l) : neutralization as lithium hydroxide which is a base reacts with sulfuric acid which is an acid to yield lithium sulfate which is a salt.

- CaCl2 (aq) + K2CO3 (aq) →2KCl (aq) + CaCO3 (s) : precipitation since both calcium chloride and potassium carbonate are soluble whereas calcium carbonate is not.

Best regards.