If red spheres represent oxygen atoms, blue spheres represent nitrogen atoms, and all the molecules are gases, (7.4, 7.5) Reactants
→ Products
c. indicate the type of reaction as combination, decomposition, single replacement, double replacement, or combustion.

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

Balance each of the following by adding coefficients, and identify the type of reaction for each: (7.4, 7.5)b.

Balance each of the following by adding coefficients, and identify the type of reaction for each: (7.4, 7.5)a.

If purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all the molecules are gases, (7.4, 7.5)Reactants

→ Products

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: (7.5)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. (7.4, 7.8)a. Write the balanced chemical equation.

Consider the following unbalanced equation: (7.4, 7.5, 7.7, 7.8)Al(s) + O₂(g) → Al₂O₃(s)b. Identify the type of reaction.