Question

A, SO₃ + ?→H₂SO₄

B, Cu (OH)₂→CuO + ?

C, CaO + ?→CaCl₂ + ?

D, ? + NaOH→Na₂CO₃ + ?

E, SO₂ + ?→H₂SO₃

G, Fe (OH)₂→FeO + ?

H, MgO + ?→MgCl₂ + ?

F, ? + NaOH→Na₂CO₃ + ?

Answer 1

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Answer 2

\(H_2+SO_3\rightarrow H_2SO_4\)

\(Cu\left(OH\right)_2\underrightarrow{t^o}CuO+H_2O\)

\(CaO+2HCl\rightarrow CaCl_2+H_2O\)

\(CaCO_3+2NaOH\rightarrow Ca\left(OH\right)_2+Na_2CO_3\)

\(SO_2+H_2O\rightarrow H_2SO_3\)

\(Fe\left(OH\right)_2\underrightarrow{t^o}FeO+H_2O\)

\(MgO+2HCl\rightarrow MgCl_2+H_2O\)

Câu f) trùng câu d)