Question 1 What are decomposition reactions? Question 2 What happens when ferrous sulphate crystals are decomposed? Question 3 What is electrolysis? Question 4 What is photochemical decomposition. Give example? Decomposition Reaction Those reactions in which a compound split up into two or more simpler substances are called as decomposition reaction. They are … [Read more...] about Decomposition Reaction
Chemical Reaction and equation
Combination Reaction
Question 1 What are combination reaction? Question 2 Give example of combination reaction? Combination Reaction Those reactions in which two or more substances combine to form a single substance, are called Combination Reactions. For Example : 2C2H2 + 5O2 → 4CO2 + 2H2O N2(g) +3H2(g) → 2NH3(g) C + O2 → CO2 2H2 + O2 → 2H2O 2Mg(s) + O2(g) → 2MgO(s) Other … [Read more...] about Combination Reaction
Chemical Equation
Question 1 What is a chemical equation? Question 2 Give an example of chemical equation? Question 3 What is a balanced equation? Question 4 What is an unbalanced equation? Question 5 What are the steps of balancing the equation? Chemical Equation The method of representing a chemical reaction with the help of symbols and formula is called chemical … [Read more...] about Chemical Equation
Characteristics of Chemical Reaction
Question 1 State the characteristics of chemical reaction? Question 2 Give an example of chemical reaction characterised by evolution of gas? Question 3 Give an example of chemical reaction characterised by formation of precipitate? Question 4 Give an example of chemical reaction characterised by change in colour? Question 5 Give an example of chemical reaction … [Read more...] about Characteristics of Chemical Reaction