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What is a period 5 element that reacts explosively with water?
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.
What gas is produced when Sodium metal reacts violently with water to produce sodium hydroxide and a gas that pops in the presence of a burning splint?
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.
Does a metallic element form an acid or base when it reacts with water?
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.
When cesium metal reacts explosively with water does it go through a physical change or a chemical change?
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.
What chemicals are produced when an acid reacts with a metal carbonate or hydroxide?
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
