Use the link above to 'run' the experiment. Go through each test in the suggested order and select the options from the list that best fit your observations. Each box should have two solutions when you complete this portion. To run a test click "Run Reaction". Use the drop down on the simulation to select a new variable and the choose to decrease. Next click "start over" to reset and choose the next condition. The sequence below matches your data table. Control Decrease Temperature Increase Temperature Decrease Concentration Increase Concentration Decrease Surface Area Increase Surface Area Add Catalyst

Question

they both need two options
for temperture concentration and surface area have decreased and increased one for each
not all product collide
option, particles collide faster(steeper slope)
all a+b react to form c
control graph is directly proportional
some reactants remain only some product is formed
particles collide slower(lower slope)

Answer 1

It sounds like you're conducting a series of experiments to understand how different variables affect the rate of a chemical reaction. Let's break down the options for each of the conditions based on your observations:

1. Control

   • Increase Temperature: All A + B react to form C
   • Decrease Temperature: Particles collide slower (lower slope)

2. Decrease Temperature

   • Decrease Temperature: Particles collide slower (lower slope)
   • Increase Temperature: Particles collide faster (steeper slope)

3. Increase Temperature

   • Increase Temperature: Particles collide faster (steeper slope)
   • Decrease Temperature: Some reactants remain; only some product is formed

4. Decrease Concentration

   • Decrease Concentration: Some reactants remain; only some product is formed
   • Increase Concentration: All A + B react to form C

5. Increase Concentration

   • Increase Concentration: All A + B react to form C
   • Decrease Concentration: Particles collide slower (lower slope)

6. Decrease Surface Area

   • Decrease Surface Area: Some reactants remain; only some product is formed
   • Increase Surface Area: Particles collide slower (lower slope)

7. Increase Surface Area

   • Increase Surface Area: Particles collide faster (steeper slope)
   • Decrease Surface Area: All A + B react to form C

8. Add Catalyst

   • Add Catalyst: Particles collide faster (steeper slope)
   • Decrease Temperature: Some reactants remain; only some product is formed

These options should align with the typical effects of changes in temperature, concentration, surface area, and the addition of a catalyst on the rate of a chemical reaction. Make sure you verify each selection based on your actual observations from the experimentation.