Does zinc react with water?

Question

It is higher up on the activity series so would it for ZnO + H2?

Answer 1

Zinc reacts noticably with water only if water is very hot and zinc is in fine powered form. Otherwise, old zinc-plated buckets and pots would quickly rust. Electrochemically, zinc dissolution in H2O is not favorable process at room temperature.

Answer 2

Reaction Of Zinc With Water

Answer 3

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Zinc is naturally present in water. The average zinc concentration in seawater is 0.6-5 ppb. Rivers generally contain between 5 and 10 ppb zinc. Algae contain 20-700 ppm, sea fish and shells contain 3-25 ppm, oysters contain 100-900 ppm and lobsters contain 7-50 ppm. Elementary zinc does not react with water molecules. The ion does form a protective, water insoluble zinc hydroxide (Zn(OH)2) layer with dissolved hydroxide ions, according to the following reaction mechanism: Zn2+ + 2OH- -> Zn(OH)2(s) Zinc reacts with H+ ions, according to the following reaction mechanism: Zn(s) + 2H+ -> Zn2+(aq) + H2(g) This reaction releases hydrogen, which reacts with oxygen explosively. Zinc salts cause a milky turbidity in water in higher concentrations. Additionally, zinc may add an unwanted flavour to water. This occurs at concentrations of about 2 mg Zn2+/ L. Zinc was not attributed a water hazard class, because it is not considered a hazard. This however only concerns elementary zinc. Some zinc compounds, such as zinc arsenate and zinc cyanide, may be extremely hazardous. Zinc is a dietary mineral for humans and animals. Still, overdoses may negatively influence human and animal health and over a certain boundary concentration, zinc may even be toxic. Toxicity is low for humans and animals, but phytotoxicity may not be underestimated. Sludge from wastewater treatment is applied in agriculture, horticulture and forestry, and zinc concentrations may therefore not exceed the 3 g/ kg boundary. Ecotoxicological tests attributed a 50 μg/L PNEC value to dissolved zinc. This means a total concentrations of 150-200 μg/L of zinc in water. This PNEC value represents the maximum concentration where no environmental effect occurs (Predicted No Effect Concentration). Industrial zinc emissions decreased strongly in the past decades. Current zinc values are not a very extensive environmental risk. Zinc concentrations in the River Rhine have reached optimal values. Unfortunately, locations of historical contamination still exist. A total of five stable zinc isotopes occur naturally, among which are 64Zn, 66Zn en 68Zn. We now know of about fifteen instable zinc isotopes. 65Zn is present in nuclear reactor cooling water, and is applied in medicine. Zinc appears to accumulates in some organisms.

Answer 4

zinc would react with hot water but the reaction would be slow. Almost all METALS react with water at certain conditions.

Answer 5

i don't think so, but don't take my word for it (although, maybe the ZnO would go for the H2, not sure, sorry).

Answer 6

In hot water, this reaction occurs.