Question

Zn>ZnO>ZnCl2>ZNCO3>ZnO>Zn(NO3)2>Zn(Oh)2>K2ZNO2;

Answer 1

Ответ:

2Zn + O2 = 2ZnO

ZnO + 2HCl = ZnCl2 + H2O

ZnCl2 + Na2CO3 = ZnCO3 + 2NaCl

ZnCO3 = ZnO + CO2

ZnO + 2HNO3 = Zn(NO3)2 + H2O

Zn(NO3)2 + 2NaOH = Zn(OH)2 + 2NaNO3

Zn(OH)2 + 2KOH = K2ZnO2 + 2H2O

Объяснение:

Answer 2

It seems like you've listed a sequence of chemical compounds involving zinc (Zn) and various anions or ligands. This sequence appears to be related to the solubility of these compounds, with compounds to the left being more soluble than those to the right. Here's a breakdown of the solubility of these compounds in water, from most soluble to least soluble:

1. Zinc Nitrate, Zn(NO3)2: This compound is highly soluble in water.

2. Zinc Hydroxide, Zn(OH)2: Zinc hydroxide is sparingly soluble in water.

3. Zinc Carbonate, ZnCO3: Zinc carbonate is insoluble or only slightly soluble in water.

4. Zinc Chloride, ZnCl2: Zinc chloride is soluble in water.

5. Zinc Oxide, ZnO: Zinc oxide is poorly soluble in water.

6. Zinc Oxide, ZnO: The solubility of zinc oxide is also quite low, as it doesn't dissolve easily in water.

7. Potassium Zincite, K2ZnO2: This compound is a zincite salt and may have limited solubility depending on the conditions.

8. Zinc: Elemental zinc (Zn) is not a compound but a metal and is not soluble in water.

9. Zinc Oxide, ZnO: Zinc oxide has already been mentioned earlier in the list.

So, in summary, the order you've listed represents the general trend in the solubility of these zinc-containing compounds, with zinc nitrate being the most soluble and elemental zinc (Zn) being completely insoluble in water. Please note that solubility can vary depending on factors like temperature and pH.