Answer the case-based question given below.
We come across many changes around us. Some changes are reversible i.e. no new substance is formed called physical changes where as some are chemical changes, represented by chemical equation.
Chemical equation represents the reactants, products and their physical states. A chemical equation must be balanced so as to satisfy law of conservation of mass.
The reactions are classified into combination, decomposition,displacement, double displacement, precipitation, redox, combustion, exothermic and endothermic reactions.
Corrosion is a process in which oxidation or redox reaction is involved. Antioxidants are added to prevent rancidity of food materials.
Chemical equation represents the reactants, products and their physical states. A chemical equation must be balanced so as to satisfy law of conservation of mass.
The reactions are classified into combination, decomposition,displacement, double displacement, precipitation, redox, combustion, exothermic and endothermic reactions.
Corrosion is a process in which oxidation or redox reaction is involved. Antioxidants are added to prevent rancidity of food materials.
a. Strong heating of ferrous sulphate leads to formation of a brown solid and few gases. What type of reaction it is?
b. Balance the following reaction:
\(Fe + H_2O → Fe_3O_4 + H_2\)
\(Fe + H_2O → Fe_3O_4 + H_2\)
c. Write the chemical reaction responsible for shiny finish of the walls.
d. Balance the given chemical equation:
\(Al\)(s) + \(CuCl_2\)(aq) → \(AlCl_3\)(aq) + \(Cu\)(s)
\(Al\)(s) + \(CuCl_2\)(aq) → \(AlCl_3\)(aq) + \(Cu\)(s)