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Answered 2010-10-23 16:03:33

Potassium is the only metal (alkali metal) where a flame is present. Lithium and sodium fizz but there is no flame. Caesium, francium and rubidium all explode on contact with water.

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I believe that you think to alkali metals (ex. sodium).

It reacts strongly in water and bursts into flames when exposed to air. =] and it is the third most reactive alkali metal

It reacts strongly in water and bursts into flames when exposed to air.

sodium, potassium, rubidiumSodium reacts very quickly with water. All Alkali metals, the first column of the periodic table excluding Hydrogen (H), react violently with water. The lower the row, the more explosive the reaction.

Once the Potassium hits the water, it bursts into flames. Very cool! Elemental potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the hydrogen emitted in the reaction.

A soft, light weight metal called sodium, which we never see. It bursts into flames in air and can even burn under water.

It either explodes or bursts up in to flames.

Beryllium is the only alkaline metal that reacts to oxygen but not to water. The hydrogen in water stabilizes the reaction.

When a metal oxide reacts with an acid a slat and water are formed.

The alkali metals sodium, potassium, rubidium, and cesium ignite on contact with water.

metal oxides do not react with water .Metal reacts with water and it made metal oxides.

With Cold Water= Metal Hydroxide With Hot Water= Nothing

No, I can only think of one example, sodium (not salt because salt is sodium chloride) is clay like metal that also bursts into flames and explodes when it comes into contact with water.

yes an alkali metal reacts in water as a transition metal does not

Yes, calcium react with water.

it takes place two elements in matter reacts for example a metal when a metal was drop into the water it will rust thats because oxygen from the water reacts with the components of the metal

Reaction of a metal oxide with water produces a metal hydroxide, which is a strong base

I had the same quesiton on a worksheet in my Chemistry class .... "Which metal reacts quickly with when water when it is finely powdered?" The answer is Magnesium .

any pure alkali metal (such as sodium)

A corresponding metal salt and water are produced.

The oxygen in the water reacts with the metal in the nail - forming metal oxide (rust)

Water reacts with metal oxides of metals high in the reactivity series to form metal hydroxides, but metal hydroxides do not react with water.

With Cold Water = Metal Hydroxide. With Hot Water = Nothing An acid is formed when certain metals react with water

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