Which of the following substances react with sodium hydroxide solutions: HCl, CaO, H2SO4, CO2, KCl, CuO?

Which of the following substances react with sodium hydroxide solutions: HCl, CaO, H2SO4, CO2, KCl, CuO? Write down the equations of feasible reactions.

Let’s write down the equations of chemical reactions.

Reaction with hydrochloric acid.

NaOH + HCl = NaCl + H2O.
when sodium hydroxide interacts with hydrochloric acid, sodium chloride and water are formed as a result.

Reaction with sulfuric acid.
2NaOH + H2SO4 = Na2SO4 + 2H2O.
When sodium hydroxide interacts with sulfuric acid, the result is sodium sulfate and water.

Reaction with carbon monoxide.
2NaOH + CO2 = Na2CO3 + H2O.
When sodium hydroxide reacts with carbon monoxide, the result is sodium carbonate and water.

Exchange reaction.
NaOH + KCl = KOH + NaCl.
When sodium hydroxide interacts with potassium chloride, the result is potassium hydroxide and sodium chloride.



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