mean rate of reaction

• What does the slope of the graph represent in a chemical reaction?

  The rate of reaction
• How does the steepness of the slope relate to the reaction speed?

  Steeper slope indicates a faster reaction
• What happens to the slope as the reaction progresses?

  The slope becomes less steep over time
• Why does the reaction slow down over time?

  Fewer reactant molecules are available
• What does a flat line on the graph indicate?

  The reaction has stopped
• How is the quantity of product measured if it is a gas?

  In centimeters cubed
• What is another way to measure the rate of reaction?

  By measuring the quantity of reactant used
• How do you calculate the mean rate of a reaction?

  Quantity of product formed divided by time
• How do you calculate the mean rate of reaction from reactant used?

  Quantity of reactant used divided by time