Combustion
The burning of a substance is called combustion. It is an exothermic process (chemical reactions which give out heat to the surroundings are called exothermic reactions). E.g., Burning of coal Burning of butane gas (g - gas form) The common observation in the..
The burning of a substance is called combustion. It is an exothermic process (chemical reactions which give out heat to the surroundings are called exothermic reactions). E.g., Burning of coal Burning of butane gas (g - gas form) The common observation in the..Chemical Properties of Sulphur Dioxide - Combustibility and Addition Reactions
Combustibility Sulphur dioxide gas is not combustible and ordinarily does not support combustion. The only exceptions are burning potassium or burning magnesium, which continue to burn in sulphur dioxid..
Combustibility
Sulphur dioxide gas is not combustible and ordinarily does not support combustion. The only exceptions are burning potassium or burning magnesium, which continue to burn in sulphur dioxide (Fig.7.5). The intense heat of the burning metals, decomposes the sulphur dioxide into sul..
Sulphur dioxide gas is not combustible and ordinarily does not support combustion. The only exceptions are burning potassium or burning magnesium, which continue to burn in sulphur dioxide (Fig.7.5). The intense heat of the burning metals, decomposes the sulphur dioxide into sul..Chemical Reactions
Chemical Reactions - Chemical reactions are the processes in which new substances with new properties are formed. A chemical reaction should satisfy the following conditions: There must not be either a gain or loss of matter. There must be..
Chemical Reactions
There are just 26 alphabets in English language, but the number of words are innumerable. You have studied about the 115 known elements and how they are classified for systematic and comprehensive study. Thousands of compounds are born by various chemical reactions involvi..
Chemical Reactions
The electrons thus released move to the zinc rod via the external circuit. The ammonia gas so produced escapes. The hydrogen ions diffuse through the porous pot and interact with MnO 2 . (The charcoal powder makes MnO 2 electrically conducting.) Therefore, These positive charges are giv..
The electrons thus released move to the zinc rod via the external circuit. The ammonia gas so produced escapes. The hydrogen ions diffuse through the porous pot and interact with MnO 2 . (The charcoal powder makes MnO 2 electrically conducting.) Therefore, These positive charges are giv..Reaction Rates- Rate of a Chemical Reaction
Rates of chemical reaction depends on the inherent characteristics or nature of the reactants. That is the reason, why some reactions are fast while others are slow. For E.g., oxidation of ferrous ion by KMNO 4 (potassium permanganate) in acidic medium is fast, ..
Chemical Reactions - Nucleophilic Addition Reactions
Aldehydes and Ketones are highly reactive compounds. They undergo similar reactions because of the presence of a carbonyl functional group in both of the..
Exothermic reactions
When chemical reactions take place, energy is either absorbed or evolved. A reaction is said to be exothermic, if heat is 'evolved'. The heat energy produced during the reactions is indicated by writing + q or more precisely by giving the actual numerical val..
Conditions of Combustion
The burning of a substance is called combustion. It is an exothermic process (chemical reactions which give out heat to the surroundings are called exothermic reactions..
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