Question

A) KOH + HCI -NaCl + H2O B) Zn+ H2SO4 -> ZnSO4 + H2-C) P + 02 -> P205D) CaCO3 CaO + CO2​

Answer 1

Ответ:

Объяснение:

KOH + HCl -> NaCl + H2O   обмен

Zn + H2SO4 = ZnSO4 + H2↑   замещение

4P + 5O2 = 2P2O5   соединение

CaCO3 -> CaO + CO2   разложение

Answer 2

A) The reaction between potassium hydroxide (KOH) and hydrochloric acid (HCl) produces sodium chloride (NaCl) and water (H2O):

KOH + HCl -> NaCl + H2O

B) The reaction between zinc (Zn) and sulfuric acid (H2SO4) yields zinc sulfate (ZnSO4) and hydrogen gas (H2):

Zn + H2SO4 -> ZnSO4 + H2

C) The reaction between phosphorus (P) and oxygen (O2) results in the formation of phosphorus pentoxide (P2O5):

P + O2 -> P2O5

D) When calcium carbonate (CaCO3) is heated, it decomposes to form calcium oxide (CaO) and carbon dioxide (CO2):

CaCO3 -> CaO + CO2