chemistry crossword

12345678
Across
  1. 3. The reactions in which both oxidation and reduction are occurring together are called ___________ reaction.
  2. 4. Fe+CuSO4= FeSO4 + Cu is an example of ____________ reaction.
  3. 6. Energy in the form of heat is released in _______ reaction.
  4. 7. An equation should be _________ to obey the law of conservation of mass.
  5. 8. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change is called ____________.
Down
  1. 1. when C and O2 are combined, CO2 is received as a __________.
  2. 2. A reaction in which oxygen is added or hydrogen is removed from a substance is called ___________ reaction.
  3. 5. In ____________ reaction, two or more reactants react to produce one product.