Chemistry Edexcel 9A Collision Theory and Rates of Reaction_1

What is rates of reaction called?

• Reaction kinetics

• Chemical kinetics
• Reaction speed
• Catalyst efficiency

Reactions that occur quickly in a short amount of time.

• Delayed responses
• Fast reactions
• Slow reactions
• Gradual changes

Reactions that take a long time to complete.

• Fast reactions
• Instant reactions
• Quick reactions
• Slow reactions

Combustion, explosions, acid-base neutralization, are examples of _________

• Fast chemical reactions

• physical changes
• mechanical actions
• Slow chemical reaction

Rusting of iron, fermentation, decomposition of plants are examples of _______

• biological processes

• endothermic reactions
• combustion reactions
• Slow Reaction

Collision Theory states that particles must ________ to react.

• interact
• separate
• dissolve
• collide

Can particals react without colliding? (Yes/No)

• Yes, particles can react without colliding.
• No

When particals react, __________ must be broken.

• chemical bonds

• elements
• molecules
• atoms

Breaking chemical bonds requires ________

• heat
• pressure
• energy
• water

In order for a reaction to occur, particles must collide with enough ________ to break bonds.

• temperature
• energy
• pressure
• volume