Reactions and 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

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

• catalyst

• product

• reactant

• solute

Catalysts permit reactions to proceed along a ___________energy path.

• lower
• higher

A catalyst increases the efficiency of collisions between reactants.

• true
• false

Tags

NGSS.HS-PS1-5

What is the name given to a catalyst in the human body?

• Biology

• Catalyst

• Chemical

• Enzyme

Which of the reaction pathway shows the catalysed reaction?

• 1

• 2

Tags

NGSS.HS-PS1-4

When a catalyst is added to a reaction the rate of reaction,,,

• Increases

• Decreases

• Does not change

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

A catalyst increases the efficiency of collisions between reactants.

• true

• false

Tags

NGSS.HS-PS1-5