Chemical Reactions | Baamboozle - Baamboozle | The Most Fun Classroom Games!

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What does the term “rate of” mean in science?

It means how fast something happens.

Explain how increasing the concentration of a solution affects the rate of reaction.

There are more particles in the same space, so there are more collisions (faster reaction)

What does a catalyst do in a chemical reaction?

Speeds it up without being used

Name 2 biochemical reactions

Digestion, nerve signals, photosynthesis in plants, bone strengthening

List all the factors that affect the rate of a chemical or biochemical reaction.

Temperature, particle size, concentration, catalyst, and pH.

Explain why enzymes do not work well at very high or low pH values.

They can become denatured, changing shape and no longer fitting with the reactant.

Explain the difference between a chemical catalyst and a biological catalyst

Biological catalysts speed up reactions in living things and chemical catalyst speed up non-living reactions

What is the role of catalase in breaking down hydrogen peroxide?

It speeds up the breakdown of hydrogen peroxide into oxygen and water.

Describe how you could test the effect of pH on the rate of reaction using catalase.

Use different pH buffer solutions, and measure how much oxygen is produced over time.

How do you test for the presence of hydrogen gas?

Place a lit splint in sample, burns with a pop

Name the chemical needed in the production of oxygen

Hydrogen Peroxide and Manganese dioxide

What is a catalyst?

A substance that speeds up a chemical reaction without being used up in the reaction.

Where can the enzyme catalase be found?

Celery / liver of mammals

Name the chemicals needed for the production Carbon Dioxide

Hydrochloric acid and Calcium Carbonate (marble chips)

What gas is produced when hydrochloric acid reacts with calcium carbonate?

Carbon Dioxide

Why do smaller particles react faster than larger ones?

They have a larger surface area, allowing more collisions with reactants.

Why does increasing the temperature speed up a chemical reaction?

Particles move faster and collide more often with more energy, leading to more reactions.

Name the chemical needed in the production of Hydrogen

Hydrochloric acid and Magnesium

What would you observe when you add manganese dioxide to hydrogen peroxide?

You’d see bubbles quickly forming – oxygen is being released faster.

What happens to enzymes when the temperature becomes too high?

They become denatured – they change shape and stop working.

Name two factors that can affect the rate of a chemical reaction.

Temperature and particle size (others include concentration, catalyst, and pH)