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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.
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.
What is the equation of Heptane KMnO4?
no reaction equation
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.
