Homogeneous and Heterogeneous Catalysts

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy or reaction

• by giving them more energy

• by making them more available

Tags

NGSS.HS-PS1-5

The minimum amount of energy needed for colliding particles to react is called the

• Chemical Energy

• Kinetic Energy

• Activation Energy

• Potential Energy

Tags

NGSS.HS-PS1-5

A substance that increases the rate of a reaction without being used up during the reaction is called a

• catalyst

• product

• reactant

• solute

Tags

NGSS.HS-PS1-5

Catalysts permit reactions to proceed along a ___________energy path.

• lower
• higher

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy or reaction

• by making them more available

• by giving them more energy

Tags

NGSS.HS-PS1-5

In homogeneous catalysis, reactants and catalysts are in the ___________ phase with each other.

• Different

• Same

In heterogeneous catalysis, reactants and catalysts are in a __________ phase with each other

• Different

• Same

Which type of catalyst works by having reactant molecules adhering to its surface thus weakening the strength of the reactant bonds?

• homogeneous

• heterogeneous