Grade 9

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  • ENRICHMENT PLAN
  • DISTANCE LEARNING
  • CHAPTER -1 THE PARTICULATE NATURE OF MATTER SEMEST...
  • CHAPTER 2 THE PERIODIC TABLE SEMESTER1
  • CHAPTER 3 METAL SEMESTER1
  • CHAPTER 4 IONS AND IONIC BONDS SEMESTER 1
  • CHAPTER5 MOLECULES AND COVALENT BONDS SEMESTER1
  • CHAPTER 6 METALLIC BONDING SEMESTER 1
  • CHAPTER 1 EXPERIMENTAL TECHNIQUES SEMESTER 2
  • CHAPTER 2 STOICHIOMETRY SEMESTER 2
  • CHAPTER 3,MOLE CONCEPT
  • CHAPTER -4 ACIDS ,BASES AND SALTS SEMESTER 2
  • CHAPTER-5 IDENTIFYING IONS SEMESTER 2

CHAPTER 2 STOICHIOMETRY SEMESTER 2















Questions

1.List the valency of elements.

2.Write the formulae of calcium oxide.






 












 
More examples 4Ca(OH) 2 3C 2 H 5 OH 2KMnO 4 4NH 3 3 x ((2x1) + 16) 3H 2 O 80 2 x (24 + 16) 2MgO 1 + 14 + 3x16 HNO 3 100 40...













                  































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