Electronic configurations of some elements
Electronic configurations of some elements
Metals and Non-metals
How do Metals react with Solutions of other Metal Salts?
How do Metals react with Solutions of other Metal Salts ? Reactive metals can displace less reactive metals from their compounds in solution or molten form.All metals are not equally reactive. We checked the reactivity of various metals with oxygen, water and acids. But all metals do not react with these reagents.So we were not …
How do Metals react with Solutions of other Metal Salts? Read More »
Aqua regia
Aqua regia, (Latin for ‘royal water’) is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3:1. It can dissolve gold, even though neither of these acids can do so alone. Aqua regia is a highly corrosive, fuming liquid. It is one of the few reagents that is …
What happens when Metals react with Acids?
\ Metals react with acids to give a salt and hydrogen gas. Metal + Dilute acid → Salt + Hydrogen Write equations for the reactions of magnesium, aluminium, zinc and iron with dilute hydrochloric acid.Hydrogen gas is not evolved when a metal reacts with nitric acid. It is because HNO3 is a strong oxidising agent. …
What happens when Metals react with Water ?
Metals react with water and produce a metal oxide and hydrogen gas. Metal oxides that are soluble in water dissolve in it to further form metal hydroxide. But all metals do not react with water. Metal + Water → Metal oxide + Hydrogen Metal oxide + Water → Metal hydroxideMetals like potassium and sodium react …
Why corrosion in Aluminium is useful ?
Anodising is a process of forming a thick oxide layer of aluminium. Aluminium evelops a thin oxide layer when exposed to air. This aluminium oxide coat makes it resistant to further corrosion. The resistance can be improved further by making the oxide layer thicker. During anodising, a clean aluminium article is made the anode and …
What is Amphoteric oxides ?
Metal oxides are basic in nature. But some metaloxides, such as aluminium oxide, zinc oxide show both acidic as well as basic behaviour. Definition : “Those metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides.“e.g – Aluminium oxide reacts in the following manner …
What happens when Metals are burnt in Air?
What happens when Metals are burnt in Air ?Magnesium burns in air with a dazzling white flame. All metals react in the same manner Almost all metals combine with oxygen to form metal oxides. Metal + Oxygen → Metal oxideFor example, when copper is heated in air, it combines with oxygen to form copper(II) oxide, …
Exception of Metals and Non-metals
Some of the examples of non-metals are carbon, sulphur, iodine, oxygen, hydrogen, etc. The non-metals are either solids or gases except bromine which is a liquid. .The general physical properties of metals and non-metals in the class. You must have concluded that we cannot group elements according to their physical properties alone, as there are …