AP Chem Topics 5.1 - 5.11

Under the collision theory, the particles must collide with ____ and ____ for a reaction to occur.

• sufficient frequency and sufficient energy

• sufficient surface area and correct orientation

• sufficient catalyst and sufficient energy

• sufficient energy and correct orientation

More collisions correspond to a: 

• Faster reaction rate  
• Slower reaction rate
• Constant reaction rate 
• None of the above

Tags

NGSS.HS-PS1-5

Which of the following is NOT a factor affecting reaction rate?

• temperature

• catalysts

• surface area of the reactants

• energy of products

Tags

NGSS.HS-PS1-5

Which of the following is NOT a type of catalyst?

• Heterogeneous

• Heteronormative

• Homogeneous

• Enzyme

Decreasing the particle size increases the reaction rate because

• It makes particles move faster

• It increases the type of collisions that are allowed

• It decreases the surface area available to react

• It increases the number of collisions

Tags

NGSS.HS-PS1-5

Which of the following increase the reaction rate?

• less surface area

• lower temperature

• an inhibitor

• increased number of collisions

Tags

NGSS.HS-PS1-5

What is activation energy?

• The maximum amount of energy used

• The minimum amount of energy required for a reaction to start

• The energy of the reactants

• The energy possessed by the products

Tags

NGSS.HS-PS1-4

A catalyst works by

• changing the order of the reaction
• increasing the temperature
• lowering the activation energy
• making the activated complex

Grinding a seltzer tablet into powder increases the rate of reaction due to...

• increased concentration of reactants
• increased surface area
• increased speed of particles.
• better orientation of reactants

Tags

NGSS.HS-PS1-5

A ______________ is a substance that is used during the reaction but regenerated in the rxn.

• catalyst

• product

• reactant

• intermediate