Across
- 1. law of __ mass.
- 4. In a chemical reaction ___ are shown to the right of the arrow.
- 6. all mineral acids except __ acid are strong acids.
- 10. What does the symbol (aq) represent in a chemical equation
- 13. We can balance an equation by adding a __ in front of symbols.
- 16. rusting of iron is __ reaction.
- 17. the reaction between an acid and a base is called ___ reaction.
- 19. plaster of paris changes to _ on mixing with water
Down
- 2. acids have __ taste?
- 3. Chemical name of sugarcane?
- 5. white silver chloride changes into ___ colour when exposed to sunlight
- 7. ___ reaction in which two or more substance combine to form a new single substance.
- 8. The phenomenon due to which metal are slowly eaten away by the reaction of air , water and chemical presence in the atmosphere .
- 9. Oxide of which element is used as major ingredient in cement
- 11. The reactions which involve the use of electrical energy for the decomposition of the reactant molecules is called ?
- 12. Respiration is example of _ reaction?
- 14. To protect tooth decay we are advised to brush our teeth regularly . The nature of the toothpaste is ___.
- 15. Dilute acid does not produce carbon dioxide on being treated with
- 18. inventory A tool is used to determine if a chemical reaction is balanced or unbalanced.
- 20. sodium hydroxide turns phenolphthalein solution into __ colour.