Question

define chemical reaction give conditions for chemical reaction with example

Answer 1

⭐️ ⭐️ ⭐️ ⭐️ ANSWER ⭐️ ⭐️ ⭐️ ⭐️



◆ WHAT IS A CHEMICAL REACTION ?

ANS. - A chemical reaction is the process of breaking the chemical bonds of the reacting substances (reactants) and make new bonds to form new substances called products.

◆ CONDITIONS ?

1] MIXING (Close Contact) :
➡️ Example : Pb(NO3)2 + 2KI ------> 2KNO3 + PbI2

2] SOLUTION
➡️ Example : NaCl (aq) + AgNO3 (aq) -----> AgCl (white ppt.) + NaNO3 (aq)

3] HEAT
➡️ Example : CuCO3 ----heat----> CuO + CO2

4] LIGHT
➡️ Example : 2AgNO3 ---sunlight---> 2Ag + 2NO2 + O2

5] ELECTRICITY
➡️ Example : 2H2O ---electricity---> 2H2 + O2

6] PRESSURE
➡️ Example : N2 + 3H2 ---(above 200 atm)---> 2NH3

7] CATALYST
➡️ Example : 2KClO3 ----MnO2----> 2KCl + 3O2





==================================

⭐️ IF YOU LIKE MY ANSWER, PLEASE MARK ME AS BRAINLIEST MATE...............!!!!!!!!

⭐️ FOLLOW ME FOR MORE SOLUTIONS OF YOUR DOUBTS..........!!!!!!!!

⭐️ BE BRAINLY........!!!!!!!!

Answer 2

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.