EASY
7th West Bengal Board
IMPORTANT
Earn 100

Write the chemical equation of the reaction of quicklime with water and complete the following table:

Substance Name of the compound Formula of the compound
Reactants Quick lime or Calcium oxide  
Water  
Products Slaked lime or Calcium hydroxide  

 

Important Questions on Atom, Molecule and Chemical Reaction

EASY
7th West Bengal Board
IMPORTANT

Write the chemical equation of the reaction of heating of limestone and complete the following table:

Name of reactant Formula of reactant Name of products Formula of products
       
       

 

EASY
7th West Bengal Board
IMPORTANT

Balance the following by putting the suitable numbers in the blank spaces:

C+O2..CO 

EASY
7th West Bengal Board
IMPORTANT

Balance the following by putting the suitable numbers in the blank spaces:

Fe2O3+C.Fe+..CO

EASY
7th West Bengal Board
IMPORTANT

Balance the following by putting the suitable numbers in the blank spaces:

Na2CO3+.HClNaCl+CO2+H2O

EASY
7th West Bengal Board
IMPORTANT

Balance the following by putting the suitable numbers in the blank spaces:

2PbNO32..PbO+NO2+O2
EASY
7th West Bengal Board
IMPORTANT

Balance the following by putting the suitable numbers in the blank spaces:

.AgNO3+H2SAg2S+HNO3
EASY
7th West Bengal Board
IMPORTANT

Balance the following by putting the suitable numbers in the blank spaces:

P4+__I2__PI3
EASY
7th West Bengal Board
IMPORTANT

Balance the following by putting the suitable numbers in the blank spaces:

CH4+.O2CO2+..H2O