Why are nuclear reactions so powerful?
First, despite being limited to a range of the diameter of a medium-sized nucleus, the strong nuclear force is 137 times more powerful than the electromagnetic force at a given distance. [1] Therefore, much more energy is stored between nucleons than between an electron and a proton.
Why is energy released in a chemical reaction?
Due to the absorption of energy when chemical bonds are broken, and the release of energy when chemical bonds are formed, chemical reactions almost always involve a change in energy between products and reactants. This stored chemical energy, or heat content, of the system is known as its enthalpy.
What energy is required to start a reaction?
Activation Energy
What are half reactions answers?
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.
What is a good reducing agent?
Good reducing agents include the active metals, such as sodium, magnesium, aluminum, and zinc, which have relatively small ionization energies and low electro-negativities. Metal hydrides, such as NaH, CaH2, and LiAlH4, which formally contain the H- ion, are also good reducing agents.
How are the oxygen atoms balanced for redox equations in basic solutions?
In basic conditions, the oxygen atoms should be balanced with OH–, while the hydrogen atoms should be balanced with water. The fully balanced reaction should have both half-reactions added back together.
What is a good reducing agent answers com?
Lithium is the most powerful reducing agent, followed by Potassium then Barium.
Why feso4 is a reducing agent?
it is a reducing agent because it oxidizes itself by losing 2 electrons. In it we have to see valency of sulphate and not of sulphur.
Is lemon juice an oxidizing agent?
Both citric acid and sulfur dioxide are reducing agents. That means they they are preservatives because they react with oxygen in the air more easily than the apple slices do.
Is gold a good oxidizing agent?
Gold “does not oxidise” according to our experience because it ranks very high in the so-called electrochemical series (Standard electrode potential ), a list of how easy it is to oxidise chemical species. Here is a part of it: As gold stays even on top of oxygen (the commonest oxidiser), no oxidation occurs to it.
Which one is the strongest oxidizing agent?
Fluorine