iron+sulphur together are a mixture of small grains yellow and dark grey.Its chemical symbol is 'Fe + S'.When it reacts with oxygen they create a new chemical substance; Iron Sulphide. What do you put for 'explain the reaction using the Big Idea of Energy? :S HELP xxx

Fe with S

When explaining the reaction between iron and sulphur using the Big Idea of Energy, it is important to consider the principles of energy transfer and conservation. The Big Idea of Energy states that energy cannot be created or destroyed; it can only be converted from one form to another.

In this reaction, iron (Fe) and sulphur (S) combine to form a new chemical substance called iron sulphide (FeS). The formation of iron sulphide involves a release of energy in the form of heat and light.

To explain this reaction using the Big Idea of Energy, you can describe it in the following steps:

1. Start by mentioning that the reactants, iron and sulphur, possess certain amounts of potential energy stored in their chemical bonds.

2. As the iron and sulphur mix together, their individual particles come into contact with each other, facilitating a chemical reaction.

3. During the reaction, the bonds holding the atoms of iron and sulphur together are broken. This requires an input of energy to overcome the forces holding the atoms in their respective lattice structures. As a result, the potential energy stored in the reactants' chemical bonds decreases.

4. As the iron and sulphur atoms rearrange themselves, they form new chemical bonds to create iron sulphide. Simultaneously, energy is released in the form of heat and light. This energy is a result of the formation of more stable chemical bonds in the product, iron sulphide, compared to the reactants.

In summary, the reaction between iron and sulphur involves breaking the bonds in the reactants (Fe and S) and forming new bonds to create the product (FeS). The energy released during this process is a consequence of the transformation of potential energy stored in the reactants' bonds to the kinetic energy of heat and light in the product.