Chemical equations Class IX Crossword Puzzle

12345678910
Across
  1. 6. Combustion reactions are always _______.
  2. 7. __________is the process in which metals are eaten up gradually by the action of air, moisture or a chemical on their surface.
  3. 8. ____________is the gain of oxygen or loss of hydrogen.
  4. 9. Sodium and chlorine are reacted and as a result,____________________ is formed which is also called table salt.
  5. 10. Chemical reactions are chemical changes in which ________________ transform into products by making or breaking bonds (or both) between different atoms.
Down
  1. 1. the condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called _________________.
  2. 2. the chemical formula of magnesium oxide is
  3. 3. any reaction that produces a ………….. is called a precipitation reaction.
  4. 4. _______________type of chemical reactions take place when electricity is passed through water.
  5. 5. The oxidation and reduction reaction are also called __________ reactions.