The acids found in alcohol that make it evaporate are called organic acids.
An organic acid is an organic compound that has acidic properties. There are two types: one has a carboxyl (COOH) group, and the other type has a phenol group.
The most common organic acids are those with a carboxyl group and include acetic acid, formic acid, lactic acid and all fatty acids. Perfumes include organic acid in their composition to make them volatile. Volatile substances evaporate easily, and this is important for perfumes. They need to dissipate easily into the surrounding environment and spread their good smell.
Its an ore of uraninte i think.
Option B. Humus. Its dark color is due to the high content of carbon.
The balanced chemical reaction is as shown below,
N₂ + 3H₂ --> 2NH₃
The equation shows that every 3 moles of hydrogen, H2, there would be 2 moles of ammonia, NH3, that is going to be formed. Using this concept, we solve for the unknown in this item.
Since we are restricted only of the number of hydrogen, it becomes our limiting reactant.
(6 moles H2) x (2 moles NH3/3 moles H2) = <em>4 moles NH3</em>
Therefore, given enough amount of N2, the amount of NH3 that can be formed out of the 6 moles of H2 is equal to 4 moles.