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What is cathodic reaction?
Taken from Introduction To Corrosion Science by E. McCafferty Two notable things occur during a cathodic reaction. 1.) A given species undergoes reduction (there is a decrease in its oxidation number) 2.) A gain of electrons at the cathodic site (electrons are consumed by the reaction) An example of a cathodic reaction is: 2H+(aq) + 2e- ==> H2(g) This reaction however is just a half-cell reaction, which means it is usually coupled (happens along with) an anodic reaction.
What the equation for the reaction?
what is the reaction for the equation for carbon dioxide
A chemical reaction can be concisely represented by a chemical what?
A chemical reaction can be represented by a chemical equation.
What is the equation of Heptane KMnO4?
no reaction equation
Why does keeping iron dry prevent it from rusting?
Iron corroding is basically Fe -----> Fen+ + n e- . This is the anodic reaction. However, due to the law of conservation of charge there needs to be a balancing cathodic reaction to consume the electrons produced. In neutral solutions this is: 2H2O + O2 + 4 e- ------> 4OH- . So if the iron is kept dry there is no balancing cathodic reaction and rusting or corrosion is slowed down vastly or stopped.
How can the efficiency of a chemical reaction be expressed?
A chemical reaction is represented by a chemical equation.
What is the equation for the reaction of aluminum and fluorine?
The equation for the reaction of aluminum and fluorine is: 2Al + 3F2 -> 2AlF3.
What is a purpose of a chemical equation?
A chemical equation lets humans explain a chemical reaction. When the same reaction occurs repeatedly, the equation serves to remind us of what happened in the reaction.
What is cathodic protection used for?
Cathodic protection is a way of preventing or controlling corrosion of a metal structure.
What is the equation for the reaction of boron with magnesium?
The reaction of boron with magnesium can be represented by the following equation: 3Mg + 2B -> Mg3B2
What is a reaction in a balancing equation?
In a balanced chemical equation, a reaction is the process of converting reactants into products. Each reactant molecule is transformed into a set of corresponding product molecules according to the stoichiometric coefficients in the balanced equation.
How is thermochemical equation different from a balanced chemical equation?
A thermochemical equation includes information about the energy changes associated with a chemical reaction, such as enthalpy changes. A balanced chemical equation shows the reactants and products involved in a chemical reaction in their correct proportions. While a balanced chemical equation gives the stoichiometry of the reaction, a thermochemical equation provides additional information about the heat flow during the reaction.
