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Can oxidation happen without reduction in a chemical reaction?
No, oxidation cannot occur without reduction occurring at the same time. This is the case since gaining electrons means another element losing due to the fact that electrons cannot be destroyed.
Which element increases its oxidation number in this reaction 3koh h3po4 k3po4 3h2o?
Phosphorus increases its oxidation number in this reaction. In H3PO4, phosphorus has an oxidation number of +5, and in K3PO4, it has an oxidation number of +5 as well. This means that phosphorus's oxidation state remains the same throughout the reaction.
In chemistry the state in which a chemical process and the reverse chemical process occur at the same rate such that the concentrations of reactants and products do not change is called what?
Chemical equilibrium is the state in which the forward and reverse reactions occur at the same rate, resulting in no net change in the concentrations of reactants and products.
Which element is Chemically similar to sulfur?
Selenium is chemically similar to sulfur as it belongs to the same group in the periodic table (group 16). Both elements have similar chemical properties and can exhibit analogous oxidation states in chemical reactions.
In what system can reactants exist in the same physical states?
Reactants can exist in the same physical state in a homogeneous system. This means that all the reactants are in the same phase, such as all being in the gas phase or all being in the liquid phase. This is common in reactions that occur in solutions or gases.
Why is it possible for both reduction and oxidation to take place at the same time?
There are chemical handbooks and journals filled with examples of oxidation reduction reactions.
What are half-reactions?
A redox half reaction is a reduction or an oxidation reaction. He half reaction does not occur by itself it much be coupled so that he electron released for another to be accepted.
How are oxidation's and reduction related?
They must always occur in the same reaction; if one element or compound is oxidized, another one must be reduced.
Are reduction reactions and displacements the same thing?
Reduction reactions involve the gain of electrons by a molecule or atom. Displacement reactions involve the exchange of ions between two compounds. While reduction reactions can be involved in displacement reactions, they are not the same thing.
What occurs in a half-cell?
Either oxidation or reduction but never both at the same time
Why is neutralisation not a redox reaction?
for oxidation or reduction to occur, electrons have to be involved. Either they are lost or gained, and as you probably know, loosing electrons is defined as oxidation and gaining electrons as reduction. In the two examples you give, the substances have already lost or gained electrons and exist as charged particles in solution; they just switch partners. For example, in the classic definition of neutralization, a base contains ( OH- ) ions and an acid contains ( H+ ) ions. If they combine there are no electrons transferred so no oxidation or reduction takes place, and the remaining ions also combine with no electron shifts. Precipitation reactions are exactly the same except that when certain ions in solution combine,( with no electrons exchanged), the substance formed is insoluble and precipitates.
Which of two the ClO2- or ClO4- show disproportionation reaction and why?
ClO2- shows a disproportionation reaction because in this species, the oxidation state of chlorine is in between -1 (in Cl-) and +4 (in ClO4-), which allows for both oxidation and reduction to occur in the same compound. ClO4- does not undergo disproportionation as the oxidation state of chlorine is already at its highest state, +7, making further oxidation not possible.
Is oxygen and oxidation mean the same thing?
No, oxygen is a chemical element, while oxidation is a chemical reaction that involves the loss of electrons by a substance. Oxygen is often involved in oxidation reactions, but they are not the same thing.
What is an oxidation reaction?
A reaction in which an atom loses 1 or more electrons. the attachment between atoms resulting in atoms sharing one or more pairs of electrons
What is formed when two substances are in the same container but chemical reactions occur?
A mixture
Oxidation and oxygenation are the same process and the terms can be used interchangabel?
Oxidation and oxygenation are not the same process. Oxidation involves the loss of electrons, while oxygenation involves the addition of oxygen. They are distinct chemical reactions with different outcomes.
What is a redox process?
A redox reaction (reduction and oxidation reaction) is a reaction in which there is a transfer of electrons. When an element is reduced, it gains electrons and its oxidation number is reduced. When an element is oxidized, it loses electrons and its oxidation number increases. Reduction and oxidation always happen at the same time.There are seven rules to redox reactions and the formulas within them. # The oxidation number of a free element is zero (0). This includes Nitrogen (N2), Helium, Oxygen (O2), Ozone (O3) and S8. (Because there is no transfer of electrons, of course there would be no oxidation number!) # The oxidation number of a simple ion is its charge. For example, the oxidation number of Cl- is -1 and the oxidation number of Al3+ is +3. # The metals in Groups 1 and 2 (or 1A and 2A) have oxidation numbers of +1 and +2 respectively. # Hydrogen in combination usually has an oxidation number of +1. An exception to this rule are the metal hydrides (such as NaH), in which hydrogen has the oxidation number of -1. In other words, with Group 1 elements, Hydrogen will be -1. # Oxygen in combination usually has an oxidation number of -2. Exceptions to this rule include peroxide (such as H2O2, when Oxygen has to be -1) and oxygen-fluorine compounds, in which the oxidation number of oxygen is positive. This is because oxygen is the second-most electronegative element and usually takes electrons, but fluorine is the absolute most electronegative element and will take oxygen's electrons. # In a molecular or ionic compound, the sum of oxidation number totals must add to zero, since these compounds are electrically neutral. # In a polyatomic ion, the sum of the oxidation number totals must add to the charge of the ion.With these rules in mind, we'll look at the formula in the synthesis of hydrogen and oxygen to make water.2H2 + O2 => 2H20Pure Hydrogen and pure Oxygen have an oxidation number of zero because of rule number 1.In water, hydrogen has an oxidation number of +1 (rule 4) and oxygen would have an oxygen would have an oxidation number of -2 (rule 5). Hydrogen, therefore, is oxidized and oxygen is reduced.
