Stage 2

• Oxidation number


  This is an integer that represents the charge assigned to the chemical species, which can be positive or negative, which represents the number of available electrons that the chemical species can gain or lose
• Oxidation -


  The element loses electrons.
• Reduction +


  the element gains electrons.
• Oxidation Reduction Potential


  a way of measuring the transformation of chemical energy into electrical energy through an electrode
• Oxidation Process


  Occurs when a substance combines with oxygen, we have it present in breathing, cooking food, and the combustion of gasoline.
• Reduction Process


  This not only refers to the combination with hydrogen atoms or the elimination of oxygen, but we can also understand it as the gain of electrons.
• Chemical reduction Potential


  Refers to the power to add hydrogen or the loss of oxygen, but it also refers to the gain of electrons
• Oxidizing Agent


  substance that causes an atom or a group of atoms to oxidize, that is, to "lose electrons"
• Reducing Agent


  substance that causes an atom or a group of atoms to reduce, that is, to "gain electrons".
• Oxidation-reduction process

  
• Chemical equation


  The representation of a chemical reaction, where some formulas and symbols are used that allow us to interpret what happens in the chemical reaction.
• Electrochemistry


  a branch of chemistry that studies the transformation of electrical energy into chemical energy and vice versa
• Spontaneous reaction


  Occurs from a device where a chemical change occurs, energy is released and converted into electrici
• Non-spontaneous reaction


  This is carried out since an external source of energy is required to produce a chemical change. (like a battery)
• Electrolytic Cell


  Consists of a container that contains the electrolyte solution and an external energy source and is responsible for the reaction, it is where the movement of ions occurs

  
• Voltaic, Galvanic, or electrochemical cells:


  These are those where electrical energy is generated from chemical reactions, considered as a redox reaction

  
• Salt bridge


  It is a device that connects two halves of the electrochemical cells and is formed of a strong electrolyte. It maintains the electrical neutrality in the circuit.