Answer:
True
Explanation:
It's true because the pH is a measure of how basic or acid a solution is. In an acidic medium, the pH scales goes from 0 to 7. While in a basic medium goes from 7 to 14. The lower the pH value of the most acid the solution is.
1. The expression pH = -log(molar concentration of hydronium) allow to calculate the pH of a solution.
2. On the other hand, the expression pOH = -log(molar concentration of hydroxide) allow to determine the pOH of a solution.
The values of pH and pOH always obey the following expression:
pH + pOH = 14
Thus if for instance the pH becomes smaller the pOH must become bigger in order to fulfill the equation. Which means that the concentration of hydronium ions is greater than the hydroxide concentration.
For example, in an acidic medium:
if pH= 3, pOH= 11
In this case the molar concentration of hydronium is 0,001M. And the molar concentration of hydroxide ions is just 0,00000000001M.
unbalanced
there has to be 4 hydrogens in total on both sides
Explanation :
It is given that,
Speed of the proton, 
Magnetic field, 
Magnetic force is given by :
q is the charge of proton, 
So,
The direction of force is given by using right hand rule. So, the force will act in upward direction.
Hence, the correct option is (a) " 
to the north".
Answer:
Period
Explanation:
horizontal is a period and verticle is a group
Answer:
c)
Explanation:
add water to the acid to decrease its molarity
