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Chemical Properties

Chemical Properties of Metals ● Alkali metals (Li, Na, K, etc) react vigorously with water and oxygen or air.● Mg reacts with hot water.● Al, Fe and Zn react with steam.● Cu, Ag, Pt, Au do not react with water or dilute acids. Reaction of Metals with Oxygen (Burnt in Air) Metal oxide is formed… Continue reading Chemical Properties

Non-Metals

Nonmetals are those elements which do not exhibit the properties of metals. Physical Properties of Non-metals Occur as solids, liquids and gases at room temperature Brittle Non-malleable Non-ductile Non-sonorous Bad conductors of heat and electricity Exceptions in Physical Properties Alkali metals (Na, K, Li) can be cut using a knife. Mercury is a liquid metal.… Continue reading Non-Metals

Physical Properties

Any measurable property whose value describes a condition of a physical system is referred to as a physical property. A system’s physical properties can be utilised to characterise its transitions between brief states.  Observables are a term used to describe physical qualities.  Physical Properties of Metals ● Hard and have a high tensile strength – Carbon is the only non metal with very high tensile strength.● Solid at room temperature – One non-metal, bromine, is a liquid at room temperature. The other non-metals are solids at room temperature, including carbon and sulfur.● Sonorous – Metals produce a… Continue reading Physical Properties

Introduction Of Chapter

In a periodic table, all elements found on the planet have been appropriately ordered based on their increasing atomic numbers. There are a total of 118 elements known to us, 92 of which are derived naturally and the remaining 26 are created artificially in the laboratory. Based on their physical and chemical properties, these elements… Continue reading Introduction Of Chapter

Plaster of paris

Plaster of Paris is a widely used chemical compound that is extensively used in sculpting materials and gauze bandages. Plaster of Paris is a white powdery chemical compound that is hydrated calcium sulphate that is usually obtained by calcining gypsum. While we have seen many applications of this material in our everyday lives, if we… Continue reading Plaster of paris

Baking soda And Others

Sodium bicarbonate, also known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO3 and the IUPAC designation sodium hydrogencarbonate. A sodium cation (Na+) and a bicarbonate anion (HCO3) combine to form this salt. Sodium bicarbonate is a white, crystalline substance that is commonly found as a fine powder. It tastes… Continue reading Baking soda And Others

Bleaching powder

Bleaching powder is soluble in water and is used as a bleaching agent in textile industries. It is also used as an oxidizing agent and a disinfectant in many industries. It should also be noted that bleaching powder is synthesized by the reacting chlorine gas on dry slaked lime i.e. Ca(OH)2. Chemical formula – Ca(OCl)Cl… Continue reading Bleaching powder

Salts

Salts A salt is a combination of an anion of an acid and a cation of a base. Examples – KCl, NaNO3 ,CaSO4, etc. Salts are usually prepared by the neutralisation reaction of an acid and a base. Common salt Sodium Chloride (NaCl) is referred to as common salt because it’s used all over the world for… Continue reading Salts