Lithium, sodium, potassium. rubidium, cesium, francium, calcium, strontium, barium and radium all react with varying degree of vigor with water to produce hydrogen gas. Other metals also will but not as vigorously.
Potassium, which is a period 5 element, reacts explosively with water. When potassium comes into contact with water, it produces hydrogen gas, which ignites immediately due to the heat produced by the reaction, resulting in a small explosion.
The gas produced is hydrogen gas (H2). The reaction between sodium metal and water is a highly exothermic reaction that liberates hydrogen gas, which in turn reacts explosively with oxygen in the air when ignited by a burning splint.
Usually a metallic element will not react with water and so will not change pH. However, a highly reactive metal, such as sodium, potassium or calcium will react with water to form the corresponding metal hydroxide, and so forms a base.
The reaction between cesium metal and water is a chemical change because it involves the breaking and forming of chemical bonds to create new substances (cesium hydroxide and hydrogen gas). The explosive nature of the reaction is due to the rapid release of energy during this chemical transformation.
Generally, when an acid reacts with a metal carbonate, the products, the reaction products are: water, carbon dioxide, and a salt specific to the metal and the acid, e.g: hydrochloric acid + sodium carbonate → sodium chloride + carbon dioxide + water. 2HCl + Na2CO3 → 2NaCl + CO2 + H2O Generally, when an acid reacts with a metal hydroxide, the products, the reaction products are: water, and a salt specific to the metal and the hydroxide, e.g: Cupric hydroxide + hydrochloric acid → Cupric chloride + water Cu(OH)2 + 2HCl → CuCl2 + 2H2O
Sodium will, and some others will too.
Potassium, which is a period 5 element, reacts explosively with water. When potassium comes into contact with water, it produces hydrogen gas, which ignites immediately due to the heat produced by the reaction, resulting in a small explosion.
Some metals in the table do not react with water
there are some alkali metals. It can be sodium or potassium.
It reacts explosively with water
A metal oxide reacts with water to produce a metal hydroxide.
Sodium is an unstable element which reacts violently when in contact with water. Sodium added to water can result in explosions.
The most reactive metal is francium (Fr). However, it is impossible to gather any sufficient quantity of francium to demonstrate this reactivity. The other alkali metals, lithium, sodium, potassium, rubidium, and cesium will all react rapidly, even explosively with water.
Hydrogen is not inert it reacts explosively with Oxygen to create water H2O
Lithium is the element that produces a red flame when it reacts with water.
Potassium is the metal that reacts most vigorously with water at 25C.
The gas produced is hydrogen gas (H2). The reaction between sodium metal and water is a highly exothermic reaction that liberates hydrogen gas, which in turn reacts explosively with oxygen in the air when ignited by a burning splint.