AP Chemistry Unit 5 Vocab

Which is true of transition states or activated complexes?

• They have bonds which are breaking and forming simultaneously.

• They are lower energy than the reactants or products.

• They are Exothermic.

• They are products.

Helps to explain why temperature and numbers of reactants have a strong effect on reaction rates.

• Activated Complexes

• Transition States

• Collision Model

• Rate Laws

Tags

NGSS.HS-PS1-5

One step in a reaction mechanism is called...

• overall reaction

• elementary step

• middle step

• slow step

Which commonly used device uses a catalyst to convert air pollutants to compounds which are not harmful?

• air conditioner

• air purifier

• catalytic converter

• heater

Tags

NGSS.HS-ESS3-4

Enzymes react with ____________ but can go on to do the reaction again once the reaction is complete.

• catalysts

• intermediates

• reactants

• substrates

The energy required to start a reaction.

• Potential Energy

• Kinetic Energy

• Activation Energy

• Enthalpy of reaction (delta H)

When reactants are lower energy than the products the reaction is called ...

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

Decay reactions or decomposition reactions always have ________ kinetics.

• zero order

• 1st order

• 2nd order

• 3rd order

Tags

NGSS.HS-PS1-5

The rate law of a first order reaction looks like...

• Rate = k[A][A]

• Rate = k[A]

• Rate = k

Tags

NGSS.HS-PS1-5

Energy distribution profiles show ...

• The speeds of all the molecules

• The average speed of the molecules

• How many of the molecules have the energy to react

• all of the above

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

NGSS.HS-PS3-1