Blue, white, yellow, orange, red
The enthalpy change for an exothermic reaction is negative because heat is being released, so that takes out two of the responses. Since energy is being released into the surroundings due to the exothermic reaction, the potential energy of the products is lower than that of the reactants. Energy is being put in to make the reaction occur, but then that energy is all being released into the surroundings thus a lower potential energy level for the products
<u>Answer:</u> The given amount of iron reacts with 9.0 moles of
and produce 6.0 moles of ![Fe_2O_3](https://tex.z-dn.net/?f=Fe_2O_3)
<u>Explanation:</u>
We are given:
Moles of iron = 12.0 moles
The chemical equation for the rusting of iron follows:
![4Fe+3O_2\rightarrow 2Fe_2O_3](https://tex.z-dn.net/?f=4Fe%2B3O_2%5Crightarrow%202Fe_2O_3)
By Stoichiometry of the reaction:
4 moles of iron reacts with 3 moles of oxygen gas
So, 12.0 moles of iron will react with =
of oxygen gas
- <u>For iron (III) oxide:</u>
By Stoichiometry of the reaction:
4 moles of iron produces 2 moles of iron (III) oxide
So, 12.0 moles of iron will produce =
of iron (III) oxide
Hence, the given amount of iron reacts with 9.0 moles of
and produce 6.0 moles of ![Fe_2O_3](https://tex.z-dn.net/?f=Fe_2O_3)
Digital offers better clarity,but analog gives you richer quality