Rates on a Graph

The independent variable (one you change) should always go on which axis.

• X

• Y

• Vertical

• I don't know

The dependent variable (One affected by the factor you changed) should go on which axis

• X

• Y

• Either

• I don't know

Which size marble chips produced the quickest rate of reaction when added to HCl.

• Small

• Medium

• Large

• I dont know

Both small and medium marble chips produced the same volume of gas at the end of the experiment.

• True

• False

Which temperature in celcius provided the quickest reaction speed.

• 40

• 30

• 50

• 10

Which of these can be used to speed up a chemical reaction (Select all appropriate answers)

• Increased Temperature

• Increased Volume

• Increased Concentration

• Increased surface area

As time passes the reaction rate starts to...

• Speed up

• Stay the same

• Slow down

• Not change

Increasing the concentration of a reactant will (Two answers)

• Increase the number of particles present

• Decrease the number of particles present

• Decrease the number of collisions

• Increase the number of collisions

Increasing the temperature of a reactant will

• Give the particles more energy

• Give the particles less energy

• Make particles move more quickly

• Make it more likely that particles will collide successfully

Approximately how long did it take for the cross to disappear at 20 Degrees Celsius.

• 67

• 54

• 68

• 58