Yes it does react. It forms Calcium hydroxide and makes the water hot. It is because the reaction between CaO and water is an exothermic reaction
Nickel Doesn't react with water under normal conditions
The iron is rusting because of its chemical bonding with oxygen, which creates ironoxide.
Zinc reacts with steam to form Zinc oxide(yellow when hot and white when cold) and hydrogen. Zn+H2O=ZnO +H2
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.
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).
Nickel Doesn't react with water under normal conditions
Zinc is unreactive to cold water, but will react with steam to give zinc oxide and hydrogen.
The iron is rusting because of its chemical bonding with oxygen, which creates ironoxide.
alkali metals react violently in cold water
Mg does not react with cold water while Ca, Sr, and Ba react with cold water to form metal hydroxide and hydrogen gas.
Aluminum forms a protective oxide layer on its surface when exposed to air or water, which prevents further reaction with water. This oxide layer acts as a barrier, preventing the aluminum underneath from reacting with water. Additionally, aluminum is relatively low on the reactivity series, so it does not readily react with water, especially at cold temperatures.
Zinc reacts with steam to form Zinc oxide(yellow when hot and white when cold) and hydrogen. Zn+H2O=ZnO +H2
Magnesium reacts with steam faster than cold water because magnesium needs to burn to get magnesium oxide and to get magnesium oxide there has to be heat and since steam is already heated it doesn't need much time, but the cold water needs time to heat first to react.
Iron will slowly rust in cold water.
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.
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).
A reaction with water (hot or cold) is a chemical reaction.