Answer:
Their isn't your examples but I will give you mine
Freezing, Evaporation and so on.
Answer:2 AL + FEN2 = 2 ALN + FE
Explanation: AL might be an improperly capitalized: Al. One of your compounds is AL (A and L). Did you mean Al (aluminum)?
FEN2 might be an improperly capitalized: FeN2. ALN might be an improperly capitalized: AlN
FE might be an improperly capitalized: Fe
Answer: 5
Explanation: pH is defined as potential of hydrogen electrode and measures the acidity or alkalinity of a substance.
It is calculated by taking negative logarithm of
ion concentration.
![pH=-log[H^+]=-log[0.00001]=-log[10^{-5}]=-(-5)log[10]=5](https://tex.z-dn.net/?f=pH%3D-log%5BH%5E%2B%5D%3D-log%5B0.00001%5D%3D-log%5B10%5E%7B-5%7D%5D%3D-%28-5%29log%5B10%5D%3D5)
Thus the given solution has pH of 5 which means this is an acidic solution.
Nooo don’t listen to the person above me
The balanced chemical reaction is:
2Al2O3 = 4Al +3 O2
We are given the amount of the reactant.
This will be the starting point of our calculations.
26.5 mol Al2O3 ( 3
mol O2 / 2 mol Al2O3 ) = 39.75 mol O2 needed
Thus, 0.014 mol of I2 is needed to form the
given amount of NI3.