Unit 5 Review- Reactions and the Mole

Front

What is Avogadro's number?

Back

Avogadro's number is 6.02 x 10^23, which is the number of particles (atoms, molecules, etc.) in one mole of a substance.

Front

How many molecules are in 1 mole of water?

Back

1 mole of water contains 6.02 x 10^23 molecules.

Front

What is the general formula for a synthesis reaction?

Back

A synthesis reaction occurs when two or more reactants combine to form a single product, represented as A + B → AB.

Front

Where are the reactants located in a chemical equation?

Back

The reactants are located on the left side of the chemical equation.

Front

How is solid sodium hydroxide represented in a chemical equation?

Back

Solid sodium hydroxide is represented as NaOH (s).

Front

What is a decomposition reaction?

Back

A decomposition reaction occurs when a single compound breaks down into two or more simpler products, represented as AB → A + B.

Front

What is a single displacement reaction?

Back

A single displacement reaction occurs when one element replaces another in a compound, represented as A + BC → AC + B.

Front

What is a double displacement reaction?

Back

A double displacement reaction occurs when the anions and cations of two different compounds exchange places, represented as AB + CD → AD + CB.

Front

What is the mole concept?

Back

The mole concept is a method of quantifying the amount of substance, where 1 mole equals Avogadro's number of particles.

Front

How do you calculate the number of molecules from moles?

Back

To calculate the number of molecules, multiply the number of moles by Avogadro's number: Number of molecules = moles x 6.02 x 10^23.