Câu 17

C.Kẽm,đồng

D.Đồng,bạc

Chỉ cần trl đáp án thui tớ cảm ơn

Đáp án + Giải thích các bước giải:

`11C`

`Fe_2``O_3 + 6HCl` → `2FeCl_3 + 3H_2``O`

`CaO + 2HCl` → `CaCl_2 + H_2``O`

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`12B`

`H_2``O + SO_2` $\rightleftharpoons$ `H_2``SO_3`

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`13C`

`CO_2 + Ca(OH)_2` → `CaCO_3 + H_2``O`

`SO_2 + Ca(OH)_2` → `CaSO_3 + H_2``O`

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`14C`

`K_2``O + H_2``O` → `2KOH`

`BaO + H_2``O` → `Ba(OH)_2`

`N_2``O_5 + H_2``O` → `2HNO_3`

`CO_2 + H_2``O` $\rightleftharpoons$ `H_2``CO_3`

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`15A`

`SO_2 + H_2``O` $\rightleftharpoons$ `H_2``SO_3`

`SO_2 + 2NaOH` → `Na_2``SO_3 + H_2``O`

`SO_2 + CaO` → `CaSO_3`

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`16B`

`d_{X}/{H_2} = 32`

`=>` `M_{X} = 32.2 = 64 (g``/``mol)`

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`17C`

`M: Zn` ; `N : Cu`

`PTHH (1): Zn + 2HCl` → `ZnCl_2 + H_2↑`

`PTHH (2): H_2 + CuO` $\xrightarrow[]{t^o}$ `Cu + H_2``O`