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A reaction with water (hot or cold) is a chemical reaction.
potassium hydroxide
It is a chemical property.
There are some metals which do not react with water. Metals like Silver,Gold,Platinum,copper,Mercury and non metals like Hydrogen do not react with water.
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alkali metals react violently in cold water
All metals, if they do react with water at all, react faster in steam than in water. However, the metals that react SLOWLY with cold water are the metals from Group-IIA(Magnesium, Calcium, etc).
Iron will slowly rust in cold water.
A reaction with water (hot or cold) is a chemical reaction.
Aluminum will not react with water at normal temperatures. Increase the temperature greatly, and just about any two things will react, though.
potassium hydroxide
If you heat up aluminum and then place it in cold water it can dissolve.
Gold does not react with water or steam. i wouldn't totally agree with the above statment. There are 5 metals which don't not just 1...these are: .lead .copper .mercury .silver .gold
Cobalt does not react with cold water. With extreme heat, CoO can form.
Zinc does react with cold water - it just does so very slowly. Steam is water that is very hot and thus as with any chemical reaction, the heat gives the molecules more energy and so they react faster.
Zinc does react with cold water - it just does so very slowly. Steam is water that is very hot and thus as with any chemical reaction, the heat gives the molecules more energy and so they react faster.
It will react vigourisly