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Action with metals
Dihydrogen combines with metals like sodium, potassium and calcium upon heating, to form corresponding hydrides, which are of ionic nature (salt-like). For example,..
Dihydrogen combines with metals like sodium, potassium and calcium upon heating, to form corresponding hydrides, which are of ionic nature (salt-like). For example,..Action on Metals
a) Metals above hydrogen in the metal activity series generally react with dilute acids to form their respective salt and hydrogen. Metal + Acid Salt + Hydrogen b) Very active metals like potassium, sodium and calcium also react similarly, but tend t..
a) Metals above hydrogen in the metal activity series generally react with dilute acids to form their respective salt and hydrogen. Metal + Acid Salt + Hydrogen b) Very active metals like potassium, sodium and calcium also react similarly, but tend t..Corrosion of Metals
. Lead corrodes to a white lead oxide or carbonate and copper corrodes to form a basic green carbonate (combination of the hydroxide Cu(OH) 2 and carbonate CuCO 3 ). In the past both metals have been used for piping but as lead is considered too toxic copper is usually used. Non..
Metallic and Non-metallic Character
Metallic and Non-metallic Character - The tendency of an element to lose electrons and form positive ions (cations) is called electropositive or metallic character. For e.g., alkali metals are the most electropositive elements. "The tendency of an element to ..
Metallic and Non-metallic Character
The tendency of an element to lose electrons and form positive ions (cations) is called electropositive or metallic character. For example, alkali metals are the most electropositive elements. "The tendency of an element to accept electrons to form an anion is called its non-..
Preparation by Direct Combination with Oxygen
Some bases can be prepared by the direct combination of a metal with oxygen. For e.g., Metal + Oxygen Basic oxi..
Some bases can be prepared by the direct combination of a metal with oxygen. For e.g., Metal + Oxygen Basic oxi..(iii) Combination with elements
Remember : Promotor is a substance, added along with a catalyst to increase the efficiency of the catalyst. Promoters are also called activators. b) With oxygen Nitrogen combines with oxygen only in presence of an electric arc at a temperature of 3000 - 5000 o C to form nitric oxide. Also..
Remember : Promotor is a substance, added along with a catalyst to increase the efficiency of the catalyst. Promoters are also called activators. b) With oxygen Nitrogen combines with oxygen only in presence of an electric arc at a temperature of 3000 - 5000 o C to form nitric oxide. Also..Non-metallic character
Hydrogen is a non-metal like halogen..
Non Metals - Introduction
Non-metals are the elements in groups 14-18 of the periodic table. Non-metals are not able to conduct electricity or heat very well. As opposed to metals, non-metallic elements are very brittle, and cannot be rolled into wires or pounded into sheets. The ..
Electronic Nature of Metals
Metals are the elements which form positive ions by losing electrons, while non-metals always gain electrons. All metals (except hydrogen) form positive ions by loosing electrons. Metals have 1 to 3 electrons in the outermost shell of their atom and non-..
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