It would either be A or B but in my perspective, I believe it is A
Answer: The concentration of hydrogen ions is 
and the concentration of hydroxide ions is 
. Thus the concentration of hydroxide ions is more than the concentration of hydrogen ions.
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydrogen ion concentration.
![pH=-\log [H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%20%5BH%5E%2B%5D)
![pOH=-\log[OH^-]](https://tex.z-dn.net/?f=pOH%3D-%5Clog%5BOH%5E-%5D)
Putting in the values:
![11=-\log[H^+]](https://tex.z-dn.net/?f=11%3D-%5Clog%5BH%5E%2B%5D)
![[H^+]=10^{-11}M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D10%5E%7B-11%7DM)
![3=-log[OH^-]](https://tex.z-dn.net/?f=3%3D-log%5BOH%5E-%5D)
![[OH^-]=10^{-3}M](https://tex.z-dn.net/?f=%5BOH%5E-%5D%3D10%5E%7B-3%7DM)
Thus the concentration of hydroxide ions is more than the concentration of hydrogen ions.
The balanced equation for the above reaction is as follows;
4HCl + O₂ ---> 2H₂O + 2Cl₂
stoichiometry of HCl to O₂ is 4:1
number of HCl moles present - 63.1 g / 36.5 g/mol = 1.73 mol
number of O₂ moles present - 17.2 g / 32 g/mol = 0.54 mol
if HCl is the limiting reactant; then number of O₂ moles = 1.73/4 = 0.43 mol
There are 0.54 mol present and only 0.43 mol are required to react. Therefore HCl is the limiting reactant and O₂ is in excess.
Answer:
CuSO4 + Fe -> FeSO4 + Cu
Explanation:
This reaction is a classic example of a redox reaction. I won't go in too deep, but the basic thing is that electrons from the Fe atom go to the Cu2+ ion. Therefore, Fe becomes an ion, and Cu - an electroneutral atom:
Fe + Cu2+ -> Fe2+ + Cu.
Silver is not a very reactive metal and it does not give up its electrons to Cu.
Answer:
No
Explanation:
<em>Water itself is not wet, but when its touches something dry it makes the dry object wet.</em>
