Rates of Chemical
Reactions

 

Observation Chart

BEAKER SURFACE AREA TIME OF REACTION IN SECONDS (S)
One Uncrushed chalk  
Two Crushed chalk  

Conclusion:

  1. a) Which beaker contained chalk with the greatest surface area?
    b) Why?
  2. Which beaker had the reaction that lasted the shortest time?
  3. Write a statement to describe how the rate of a reaction is affected by changing the
    surface area of a substance. blank line
     
     
  4. Was your hypothesis correct?blank boxyes blank box no
  5. Remember to switch roles at the next station.