Chemistry

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Across
  1. 6. Acid present in tomato.
  2. 8. An acid formed when sulphur trioxide reacts with water
  3. 9. Plaster of Paris hardens by mixing with?
  4. 10. A medicine used for treating indigestion.
  5. 11. calcium phosphate is present in tooth enamel.Its nature is?
  6. 13. the constituent of haemoglobin is?
Down
  1. 1. NaHCO3 is chemical formula of?
  2. 2. slaked lime is prepared by adding water to _______.
  3. 3. The acid obtained from curd is ________.
  4. 4. This element is stored under water.
  5. 5. plaster of Paris is obtained by heating
  6. 7. nitric acid is an example of _______.
  7. 12. liquid non metal