Question

Zn->zno->zn(oh)2->znco3->co2

Answer 1

1)Zn+O2->ZnO
2)ZnO+H2O->Zn(OH)2
3)Zn(OH)2+CO3->ZnCO3+H2O
4)ZnCO3->ZnO+CO2

Answer 2

Когда цинк (Zn) взаимодействует с кислородом (O2), образуется оксид цинка (ZnO). Затем ZnO может реагировать с водой (H2O), образуя гидроксид цинка (Zn(OH)2). При дальнейшем взаимодействии с углекислым газом (CO2), образуется карбонат цинка (ZnCO3), и как продукт выделяется углекислый газ (CO2).

Answer 3

The chemical reaction you provided involves the conversion of zinc (Zn) to zinc carbonate (ZnCO3) via several intermediate steps. Let's break down the reaction and discuss each step in detail.

Step 1: Zn -> ZnO

The first step in the reaction is the conversion of zinc (Zn) to zinc oxide (ZnO). This reaction occurs when zinc reacts with oxygen in the air. The balanced chemical equation for this step is:

2 Zn + O2 -> 2 ZnO

In this reaction, two zinc atoms react with one oxygen molecule to form two molecules of zinc oxide.

Step 2: ZnO -> Zn(OH)2

The second step involves the reaction of zinc oxide (ZnO) with water (H2O) to form zinc hydroxide (Zn(OH)2). The balanced chemical equation for this step is:

ZnO + H2O -> Zn(OH)2

In this reaction, one molecule of zinc oxide reacts with one molecule of water to produce one molecule of zinc hydroxide.

Step 3: Zn(OH)2 -> ZnCO3

The third step in the reaction is the conversion of zinc hydroxide (Zn(OH)2) to zinc carbonate (ZnCO3). This occurs when zinc hydroxide reacts with carbon dioxide (CO2) from the atmosphere. The balanced chemical equation for this step is:

Zn(OH)2 + CO2 -> ZnCO3 + H2O

In this reaction, one molecule of zinc hydroxide reacts with one molecule of carbon dioxide to produce one molecule of zinc carbonate and one molecule of water.

Step 4: ZnCO3 -> CO2

The final step in the reaction is the decomposition of zinc carbonate (ZnCO3) to carbon dioxide (CO2). This occurs when zinc carbonate is heated, releasing carbon dioxide gas. The balanced chemical equation for this step is:

ZnCO3 -> ZnO + CO2

In this reaction, one molecule of zinc carbonate decomposes into one molecule of zinc oxide and one molecule of carbon dioxide.

So, the overall reaction can be summarized as follows:

Zn -> ZnO -> Zn(OH)2 -> ZnCO3 -> CO2

Please note that the reaction you provided is a simplified representation of the actual reaction, and the conditions under which each step occurs, such as temperature and presence of catalysts, may vary.