Types Of Chemical Reactions

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. Acids present in plants and animals are acid.
2. is used in white washing buildings.
3. The pH of the solution is , it is a neutral solution.
4. The pH of a normal healthy human skin is and the pH of the stomach fluid is .
5. All photo decomposition reaction are reactions.
6. Equilibrium is possible in a system.
7. Silicon dioxide reacts with calcium oxide to form .
8. A is a substance which increases the reaction rate.
9. The pH of a solution can be determined by using a indicator.
10. The white enamel coating of our teeth is .