Metals generally react with acids to form metal salts and hydrogen gas. The reaction of a metal with an acid can be represented by the following equation: Metal + Acid → Metal Salt + Hydrogen For example, the reaction of zinc with hydrochloric acid can be represented as: Zn + 2HCl → ZnCl2 + H2
Most metals react with water to form metal hydroxides and hydrogen gas. A few metals, such as sodium and potassium, react vigorously and can even ignite or explode when they come in contact with water. Other metals, such as copper and silver, do not react with water. When sodium reacts with water, it forms sodium …
Reaction of metals with water – ജലവുമായുള്ള ലോഹങ്ങളുടെ പ്രതിപ്രവർത്തനം Read More »
Metals react with air to form metal oxides, a type of corrosion. The reaction is accelerated by moisture in the air. The process is called oxidation and can be seen in rust. Rust is an iron oxide, which forms when iron reacts with oxygen in the air. Other metals, such as copper, aluminum, and zinc, …
Strength: Metals are used for many structural applications because of their strength. Steel is the most common metal used for building structures. Electrical Conductivity: Metals are excellent conductors of electricity and are used in wiring and other electrical applications. Copper is the most common metal used in electrical wiring due to its high conductivity and …
Different uses and properties of metals – ലോഹങ്ങളുടെ വ്യത്യസ്ത ഉപയോഗങ്ങളും ഗുണങ്ങളും Read More »
The melting point of a substance is the temperature at which it changes from a solid to a liquid. The boiling point is the temperature at which a substance changes from a liquid to a gas. A good example of this is water. The melting point of water is 0°C (32°F) and the boiling point …
Melting point and Boiling point – ദ്രവണാങ്കവുംതിളനിലയും Read More »
Metals have a distinctive sound when struck or tapped. This sound is referred to as the “sonarity” of the metal and is determined by the hardness and thickness of the material. Soft metals such as aluminum have a higher sonority than harder metals such as steel. The sonority of a metal is often used to …
Electrical conductivity of metals is the ability of a metal to carry an electrical current. Metals are generally good conductors of electricity, meaning they easily allow the flow of electric charge. Examples of metals with high electrical conductivity include copper, silver, and gold.
Thermal conductivity of metals is a measure of how well a metal conducts heat. It is a measure of the rate at which heat energy is conducted through a material. Metals generally have higher thermal conductivity than other materials such as plastics or wood. This means that metals are better at transferring heat from one …
Metallic lustre is a bright, shiny and reflective appearance that is displayed by metals. It is caused by the reflection of light off of the metal’s surface. The color of the metal’s lustre is determined by the composition of the metal and the type of surface finish applied to the metal. Examples of metals that …
In simple terms, the hardness of a metal is a measure of its resistance to scratching, abrasion, or other forms of deformation. In other words, a metal with a high hardness is more difficult to scratch or deform than a metal with a low hardness. For example, a steel nail is harder than a lead …