Front

What is the effect of increasing the surface area on the rate of reaction?

Back

Increases the frequency of collisions, thus increasing the rate of reaction.

Front

How does increasing the temperature affect the rate of a chemical reaction?

Back

Increases the energy of particles, leading to more frequent and energetic collisions.

Front

What changes might be observed in the mixture as the reaction proceeds during the elephant toothpaste experiment?

Back

Formation of foam.

Front

How does the acidity of the vinegar affect the reaction with the baking soda?

Back

It increases the reaction rate.

Front

What factors affect the rate of reaction in the steel wool and oxygen experiment?

Back

Concentration and surface area.

Front

Define 'rate of reaction'.

Back

The speed at which reactants are converted into products in a chemical reaction.

Front

What role do catalysts play in chemical reactions?

Back

They increase the rate of reaction without being consumed in the process.

Front

Explain how concentration affects the rate of reaction.

Back

Higher concentration increases the number of particles in a given volume, leading to more frequent collisions.

Front

What is the relationship between temperature and kinetic energy in a reaction?

Back

As temperature increases, the kinetic energy of particles increases, resulting in more frequent and energetic collisions.

Front

Describe the effect of pressure on the rate of reaction for gases.

Back

Increasing pressure decreases the volume available to gas particles, leading to more frequent collisions and a higher reaction rate.