Unit 4 Review Flashcardziz

Front

What type of reaction is represented by the equation: 2NaHCO3 -> Na2CO3 + CO2 + H2O?

Back

Decomposition reaction: A reaction where a single compound breaks down into two or more products.

Front

What is the general formula for a Double Replacement reaction?

Back

AB + CD -> AD + CB: A reaction where two compounds exchange ions to form two new compounds.

Front

What is the correct name for the compound K2O?

Back

Potassium oxide: An ionic compound formed from potassium and oxygen.

Front

How do the following two elements bond together: Pb4+ and O2-?

Back

PbO2: Lead(IV) oxide, formed by the combination of lead ions and oxide ions.

Front

What is the correct coefficient for H2O when balancing the equation C4H10 + O2 -> CO2 + H2O?

Back

5: The balanced equation requires 5 water molecules.

Front

Define a Combination reaction.

Back

A reaction where two or more substances combine to form a single product.

Front

What is a Single Replacement reaction?

Back

A reaction where one element replaces another in a compound.

Front

What is the formula for calculating the number of moles from mass?

Back

Number of moles = mass (g) / molar mass (g/mol).

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of moles of each substance involved in the reaction.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.