Descibe the various types of chemical reaction with examples?.
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Answers
Answer:
The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories. Some reactions will fit into more than one category.
Explanation:
A chemical reaction is typically followed by physical signs that are readily detected, such as heat and light emission, precipitate formation, gas evolution, or a change of appearance.
Chemical Changes
Some common chemical canges are =
• Burning of coal (or carbon), wood, paper, kerosene, LPG, petroleum etc.
• Burning of candle
• Formation of curd from milk (or cursing of milk)
• Electrolysis of water to form hydrogen and oxygen
• Rusting of iron
• Ripening of fruits, and growing of a plant into a tree
• Bursting of a cracker
• Cooking of food
• Digestion of food
• Germination of seeds
• Respiration by living organisms
Characteristics of a Chemical Change
All chemical changes show the following characteristics:
• During a chemiy change, new substances with different properties are formed.
• Chemical chnages are permanent. Thus a chemical change cannot be reversed by simple physical methods.
• Relatively larger amount of heat is either absorbed or evolved during a chemical change.
• Chemical changes occur only under proper conditions.