2024 Rates of Reactions

Front

What effect does smaller particle size have on the surface area for a reaction?

Back

Smaller particle size allows for a larger surface area to be exposed for the reaction.

Front

What happens to energy in an exothermic reaction?

Back

In an exothermic reaction, energy is released.

Front

Does the equation 2Fe2O3 + 3C → 4Fe + 3CO2 follow the Law of Conservation of Mass?

Back

Yes, because the reactants equal the products.

Front

Can chemical reactions occur quickly or slowly?

Back

Yes, chemical reactions can occur quickly or slowly.

Front

How many hydrogen atoms are in 2H2O?

Back

There are 4 hydrogen atoms in 2H2O.

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings.

Front

What factors affect the rate of a chemical reaction?

Back

Factors include temperature, concentration, surface area, and the presence of catalysts.

Front

What is a catalyst?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.

Front

What is the role of temperature in chemical reactions?

Back

Increasing temperature generally increases the rate of a chemical reaction.