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Which component becomes oxidized in the following chemical reaction 4FE plus 3 O2 equals 2 Fe2O3?
Fe is oxidised. Oxidation can be identified in 3 main ways:
- Loss of electrons
- Gain in Oxygen
- Loss of Hydrogen
In the above, elemental iron gains oxygen so it is oxidised. Some elements such as oxygen and hydrogen are taken to have a fixed oxidation state when in a compound. For Oxygen it is -2 and Hydrogen it is +1. An element by itself has no oxidation state, so it is taken to be 0. Using this you can calculate the oxidation state of the iron. Given that there are 3 oxygen ions in Fe2O3, so 3 x -2 = -6 oxidation state. Given that Fe2O3 is not charged a +6 charge is required to balance the -6. So this +6 is divided across the 2 iron ions to have +3 charge each. So the overall oxidation state change for iron is from 0 to +3.
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How does the oxidation state of Na change in the following reaction?
In the reaction where Na is oxidized to Na+ in a chemical reaction, the oxidation state of Na changes from 0 to +1. This means that Na loses one electron and is oxidized.
What element is oxidized in this reaction FeO CO--Fe CO2?
Iron (Fe) is oxidized in this reaction. It goes from an oxidation state of +2 in FeO to +4 in FeCO2.
Which element increases its oxidation number in the following reaction?
An element that increases its oxidation number in a reaction has been oxidized. This means it loses electrons or gains a more positive oxidation state. You can determine which element is oxidized by comparing the oxidation numbers of the element in the reactants and products of the reaction.
Would burning of matchstick be a chemical reaction?
Yes, burning a matchstick is a chemical reaction because it involves the breaking and forming of chemical bonds. The reactants (matchstick and oxygen) are transformed into new substances (carbon dioxide, water vapor, and smoke).
What is oxidized and what is reduced in the following reaction Al3 Br2-- 2 AlBr3?
In the reaction Al3 Br2 -> 2 AlBr3, aluminum (Al) is oxidized from 0 to +3 (loses electrons) as it goes from Al3 to AlBr3. Bromine (Br) is reduced from 0 to -1 (gains electrons) as it goes from Br2 to AlBr3.
How does the oxidation state of Na change in the following reaction?
In the reaction where Na is oxidized to Na+ in a chemical reaction, the oxidation state of Na changes from 0 to +1. This means that Na loses one electron and is oxidized.
Is something that is easily oxidized a physical or chemical property?
Oxidation is a chemical reaction, so it is a chemical property.
What chemical is oxidized in the following reaction Br2(l) plus 2I-(aq) and rarr 2Br-(aq) plus I2(s)?
Bromine is the oxidizing element.
Which component is affected when a catalyst is added to a chemical reaction?
The component affected when a catalyst is added to a chemical reaction is the reactants. The purpose of a catalyst is to speed up a reaction.
What is oxidized in the following reaction Fe plus Ag2O equals FeO equals 2Ag?
Fe
How can you tell the difference between a chemical reaction and not a chemical reaction?
A chemical reaction will do the following; Change colour Create smoke A non chemical reaction (Physical Reaction) will do the following; Change State Be able to change back to the original materials
Which element increases its oxidation number in the following reaction?
An element that increases its oxidation number in a reaction has been oxidized. This means it loses electrons or gains a more positive oxidation state. You can determine which element is oxidized by comparing the oxidation numbers of the element in the reactants and products of the reaction.
What element is oxidized in the following redox reaction 2h2s o2?
In the given reaction, the hydrogen sulfide (H2S) is the element that gets oxidized. The sulfur in H2S changes from a -2 oxidation state to 0 in sulfur dioxide (SO2), indicating oxidation.
What element is oxidized in this reaction FeO CO--Fe CO2?
Iron (Fe) is oxidized in this reaction. It goes from an oxidation state of +2 in FeO to +4 in FeCO2.
Which of the following is not required in a chemical reaction?
An enzyme is not required in a chemical reaction. While reactants, energy, and a chemical reaction pathway are essential components of a chemical reaction, enzymes can speed up the reaction but are not always necessary for it to occur.
What reaction will a metal have if it has no reaction with air?
This metal is not oxidized.
How can the following chemical reaction be described qualitatively 4Fe plus 3o2 Fe2o3?
This chemical reaction describes the rusting of iron in the presence of oxygen. Four iron atoms react with three oxygen molecules to form two molecules of iron oxide (Fe2O3), commonly known as rust. This reaction is a redox reaction where iron is oxidized (loses electrons) and oxygen is reduced (gains electrons).
