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WorksheetsPre-Test COT2-Collision Theory and the Rate of Chemical Re
Total questions: 10
Worksheet time: 2mins
1. A chemical change occurs when two or more substances combine to form a new substance.
a. Activation Energy
b. Chemical Kinetics
c. Chemical Reaction
d. Product
2. The measure of how fast or slow a reaction happens.
a. Activation Energy
b. Collision Theory
c. Particle Size
d. Rate of Reaction
3. The substance that enters into and is altered in the course of a chemical reaction.
a. Catalyst
b. Concentration
c. Product
d. Reactant
4. The number of particles present in a given volume of solution.
a. Catalyst
b. Concentration
c. Product
d. Temperature
5. The measure of how fast is the change in the concentration of the reactants or products in a chemical reaction.
a. Activation Energy
b. Activation Rate
c. Chemical Reaction
d. Concentration
6. The factors that do NOT show evidence of chemical reaction.
a. Absorption of Heat
b. Change of Color
c. Change of Size
d. Liberation of Heat
7. The measure of the average kinetic energy of the particles in an object.
a. Energy
b. Humidity
c. Temperature
d. Thermometer
8. The measure of how much-exposed area a solid object has expressed in square units.
a. Volume
b. Surface
c. Surface Area
d. Concentration
9. The substance that is dissolved in a solution.
a. Solid
b. Solute
c. Solvent
d. Substance
10.The component of a solution that is present in the greater amount.
a. Sample
b. Solute
c. Solvent
d. Substance
