There are numerous types of distinct chemical reactions. Although there are four types of chemical reactions, and they are as follows; analysis reaction, direct combination, double replacement, and single displacement. When being asked to name the five key types of chemical reactions, those four types are the ones that should be stated then either redox or even acid-base. While focusing on the first chemical reaction known as analysis reaction it could also be termed chemical decomposition and it is also one of the most popular chemical reaction types. In the decomposition reaction, the compound is tired apart into smaller pieces of chemicals. (AB → A + B). In other cases, the reactant could be broken into the component elements, although the decomposition might result in it being broken into smaller molecules. Another type of chemical reaction is the direct combination reaction. This is a reaction that which two simple substances are linked together hence forming a unique substance known as a direct combination. For instance, N2 + 3H2 –> 2NH3 and 2CO + O2–> 2CO2 .
The other type of chemical reaction is the double replacement. This is a type of chemical reaction in that double reactant ionic compounds would exchange ions hence forming two product compounds with similar ions. For instance, A+B– + C+D– → A+D– + C+B-. in this particular type of reaction, a positive-charged cation as well as a negative-charged anion of both the reactants trade places (double displacement), thus forming two products.
The type of reaction that is present between sulfuric acid and metal is known as a single displacement reaction, similarly to other types of acids, that have been producing salts and hydrogen gas (metal sulfate). That attacks reactive metals like aluminum, iron, manganese, zinc, and nickel.
Since iron has been reacting with sulfuric acid for it to show its mole ratio for Fe2(SO4)3 vs Fe: 2 Fe + 3 H2SO4 –> Fe2(SO4)3 + 3 H2. Grams will have to be converted to be moles, modified by mole ratio, hence converting moles of the product into grams: (10.0g Fe) * (1 mol Fe / 55.845g Fe) * (1 mol Fe2(SO4)3 / 2 mol Fe) * (399.86g Fe2(SO4)3 / 1 mol Fe2(SO4)3) = 53.7 [g Fe2(SO4)3]
The calculation below shows how the amount of product, aluminum sulfate, could be produced from 10.0 grams of aluminum.
2 Al + 3 H2SO4 –> Al2(SO4)3 + 3 H2, so (10.0g Al) * (1 mol Al /26.98g Al) * (1 mol Al2(SO4)3 / 2 mol Al) * [315.15g Al2(SO4)3 / 1 mol Al2(SO4)3] = 87.6g Al2(SO4)3
The solution of aluminum sulfate has an effective acidity. If stainless jewelry will be used for a longer period, the iron sulfate and aluminum sulfate would be a chemical reaction. The hydrolysis of aluminum sulfate could produce sulfuric acid as well as the reaction of iron would result in ferrous sulfate, which causes the jewelry to erode.
Al2 (SO4) 3 + 6H2O = 2Al (OH) 3 + 3H2SO4
Fe + H2SO4 = FeSO4 + H2
After judging the info presented in the case, it can be concluded that apart from the other components above that could react to sulfuric acid, nickel and chromium could also react to sulfuric acid. While heating, hydrolysis strengthens the acidity hence the chemical reaction’s rate increases as well as the corrosion level accelerates greatly.