Bonding and catalysis

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

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

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

• Biology

• Catalyst

• Chemical

• Enzyme

A catalyst be regenerated or used again and again

• False

• True

A catalyst

• is used up

• is nevr used up

Catalysts may be in the state of ___________.

• Solid and liquid only

• Liquid and gases only

• Solid and gases only

• Solid, liquid or gases

The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?

• Red, because the activation energy is larger

• Blue, because the activation energy is lower

• both reaction progress at the same rate

triatomic molecule from the following is

• oxygen gas

• water

• hydrogen gas

• chlorine gas