homogenous and heterogenous 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

Tags

NGSS.MS-LS1-7

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

A catalyst changes the mechanism of the reaction

• True

• False

Catalysts may be in the state of ___________.

• Solid and liquid only

• Liquid and gases only

• Solid and gases only

• Solid, liquid or gases

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

• Different

• Same