Chemical Reactions Part 1 Review

Front

What is a chemical reaction?

Back

A process in which substances (reactants) undergo a transformation to form new substances (products).

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

How does concentration affect the rate of reaction?

Back

Higher concentration increases the frequency of particle collisions because there are more collision sites.

Front

What is a combination reaction?

Back

A reaction where two or more substances combine to form a single product, represented as A + B -> AB.

Front

What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products, represented as AB -> A + B.

Front

What is a single replacement reaction?

Back

A reaction where one element replaces another in a compound, represented as A + BC -> AC + B.

Front

What is a double replacement reaction?

Back

A reaction where the anions and cations of two different compounds exchange places, represented as AB + CD -> CB + AD.

Front

What is an exothermic reaction?

Back

A reaction that releases energy, usually in the form of heat, to the surroundings.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from the surroundings, resulting in a decrease in temperature.