5. Classification & Balancing of Chemical Reactions

Ibuprofen is used as an anti-inflammatory agent used to deal with pain and bring down fevers. If it has a molecular formula of C₁₃H₁₈O₂, determine the balanced combustion reaction when it is subjected to high temperatures.

Indicate the type of chemical reaction taking place from the following equation:

Indicate the type of chemical reaction taking place from the following equation:

Indicate the type of chemical reaction taking place from the following equation:

Glucose, also known as "blood sugar" when measured in blood, has the formula C₆H₁₂O₆.

a. Write the equation for the combustion of glucose with O₂ to give CO₂ and H₂O.

When table sugar (sucrose, C₁₂H₂₂O₁₁) is heated, it decomposes to form C and H₂O.

a. Write a balanced equation for the process.

Elemental phosphorus exists as molecules of P₄. It reacts with Cl₂(g) to produce phosphorus pentachloride.

a. Write the balanced chemical equation for this reaction.

Magnetite, an iron ore with formula Fe₃O₄, can be reduced by treatment with hydrogen to yield iron metal and water vapor.

a. Write the balanced equation.

Balance each of the following by adding coefficients, and identify the type of reaction for each:

b.

Balance each of the following by adding coefficients, and identify the type of reaction for each:

a.

If red spheres represent oxygen atoms, blue spheres represent nitrogen atoms, and all the molecules are gases,

c. indicate the type of reaction as combination, decomposition, single replacement, double replacement, or combustion.

If purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all the molecules are gases,

c. indicate the type of reaction as combination, decomposition, single replacement, double replacement, or combustion.

Identify the type of reaction for each of the following as combination, decomposition, single replacement, double replacement, or combustion:

d. Zinc replaces copper in Cu(NO₃)₂.

Propane gas, C₃H₈, undergoes combustion with oxygen gas to produce carbon dioxide and water gases. Propane has a density of 2.02 g/L at room temperature.

a. Write the balanced chemical equation.

Consider the following unbalanced equation:

Al(s) + O₂(g) → Al₂O₃(s)

b. Identify the type of reaction.