Answer to Question #71874 in General Chemistry for Chloe Lozano

Question

The equation for the generation of rust is 4Fe (s) + 3O2 (g) → 2Fe2O3 (s). This is an example of which type of chemical reaction?
A. combination
B. complete combustion
C. decomposition
D. formation
E. None of the Above

Answer 1

Explanation:

combination
Combination reaction is a reaction where two or more compounds (reactants) are combined into one product. True.

complete combustion
Combustion is an exothermic redox chemical reaction between reductant (fuel) and oxygen. Complete combustion products are only carbon dioxide and water. Wrong, because no carbon dioxide and no water is formed.

decomposition
Decomposition reaction is a reaction where one compound breaks into several simpler substances. Wrong, because in the given reaction simpler substances form one compound.

Formation
Formation reaction is a combination reaction where one mole of product is formed of elements. Wrong, because two moles of product are formed in the given reaction.

none of the above
Wrong, because A is true.


Answer: A. combination .