Review Game Zone

Flash Cards (current)
Games
Teachers

Reaction Rates

Test Description: Review of Collision Theory and Reaction Rates

Instructions: Answer all questions to get your test result.

1) Collision Theory

AStates that more chemical reactions occur when molecules are cold BSays chemical reactions are not possible CIs a theory that molecules collide when temperatures increase DSays chemical reactions occur through collisions between molecules

2) When two molecules collide at low energy

AThe molecules switch places BA chemical reaction occurs CThe temperature drops DNo chemical reaction occurs

3) Which of the following will SPEED UP a chemical reaction?

AWarmer Temp BColder Temp CRemove a catalyst DLower Concentration

4) Which of the following will SLOW down a chemical reaction?

ALower the concentration BWarmer Temperature CIncrease the concentration DAdd a catalyst

5) Why does a warm temp speed up chemical reactions?

AParticles are moving slower and are less likely to collide BParticles are moving slower and collide more energy CParticles are moving faster and are less likely to collide. DParticles are moving faster so collisions have more energy

6) Why does higher concentration increase the speed of a chemical reaction?

AParticles are spread apart and more likely to collide BParticles are more crowded and collide with less energy CParticles are more crowded are more likely to collide DParticles are spread apart and less likely to collide

7) What does a Catalyst do?

AStops a chemical reaction BIncreases the speed of a chemical reaction CMakes to un-reactive chemicals reactive DSlows down a chemical reaction

8) Which of the following is most likely to occur in lab?

AIncreasing the temperature of Sodium Thiosulfate will slow down a reaction with HCl BDropping the temperature of Sodium Thiosulfate will slow down a reaction with HCl CIncreasing the concentration of Sodium Thiosulfate will slow down a reaction with HCl DDecreasing the concentration of Sodium Thiosulfate will speed up a reaction with HCl

9) What two things can change the rate of a chemical reaction?

ASunlight and Sugar BTemperature and Sand CEvaporation and Beakers DTemperature and Concentration

10) Which reaction time most likely corresponds to the highest temperature?

A300 seconds B5 seconds C15 seconds D45 seconds

11) Which reaction time most likely corresponds to the lowest concentration of reactant?

A15 seconds B300 seconds C45 seconds D5 seconds

*select an answer for all questions

Play Games with the Questions Above

Teachers: Create FREE classroom games with your questions Click for more info!
©2007-2023 ReviewGameZone.com | About | Privacy | Contact | Terms | Site Map

WAIT! Find what you needed?

Still Looking for the Answers? Have Another Question? Play a Review Game with These Questions? Want to Make Your Own Test Like This One?

Web Analytics Made Easy -
StatCounter