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Exam (elaborations) Pierra Flack - Collision Theory Gizmo Question And Answers,
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Exam (elaborations) Pierra Flack - Collision Theory Gizmo Question And Answers,
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Name: ______________________________________ Date: ________________________Student Exploration: Collision Theory
Vocabulary: activated complex, catalyst, chemical reaction, concentration, enzyme, half-life,
molecule, product, reactant, surface area
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. Suppose you added a spoonful of sugar to hot water and another to ice-cold water. Which
The hot water
type of water will cause the sugar to dissolve more quickly? _________________________
2. Suppose you held a lighted match to a solid hunk of wood and another match to a pile of
The shavings
wood shavings. Which form of wood will catch fire more easily? ______________________
Gizmo Warm-up
A chemical reaction causes the chemical compositions
of substances to change. Reactants are substances that
enter into a reaction, and products are substances
produced by the reaction. The Collision Theory Gizmo
allows you to experiment with several factors that affect
the rate at which reactants are transformed into products
in a chemical reaction.
You will need blue, green, and orange markers or colored
pencils for the first part of this activity.
1. Look at the key at the bottom of the SIMULATION pane. In the space below, draw the two
reactants and two products of this chemical reaction.
Reactants: Products:
A. A.
B. B.
2. Reactant
Click Play ( ). What do you see? A bounces around bumping into
Reactant B which is on the right side vibrating against the
____________________________________________
side. When Reactant A succeeds in breaking the bonds of
_________________________________________________________________________
Reactant B the orange substance on Reactant B breaks off
and bonds with Reactant A forming Product B, leaving the two
_________________________________________________________________________
green substance molecules which are Product A
2019
, _________________________________________________________________________
2019
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