Unit 4 - Predicting Products of Chemical Reactions

Front

What is a combustion reaction?

Back

A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat. Example: 2 C6H14 + 19 O2 → 12 CO2 + 14 H2O.

Front

What are the products of the reaction K + HCl?

Back

The products of the reaction K + HCl are KCl + H2.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more reactants combine to form a single product. Example: 4Fe + 3O2 → 2Fe2O3.

Front

How do you balance the equation C2H4 + 2 O2?

Back

The balanced equation is 2 CO2 + 2 H2O.

Front

What is the balanced synthesis reaction of iron (III) and oxygen?

Back

The balanced synthesis reaction is 4 Fe + 3 O2 → 2 Fe2O3.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a chemical reaction where a single compound breaks down into two or more simpler products. Example: 2 H2O → 2 H2 + O2.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a type of chemical reaction where one element replaces another in a compound. Example: Zn + CuSO4 → ZnSO4 + Cu.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: AgNO3 + NaCl → AgCl + NaNO3.

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; the mass of the reactants equals the mass of the products.

Front

What is the role of coefficients in a chemical equation?

Back

Coefficients are numbers placed in front of compounds in a chemical equation to indicate the number of molecules or moles of each substance involved in the reaction.