Explanation:
Here is the answer hope you do well
A physical change doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed as well as new energy.
Since Kw= [H⁺][OH⁻], and the concentration of both substances are the same, the equation is now Kw=[H⁺]²
So,
3.31x10⁻¹³ = [H⁺]²
Take the square root= 5.75x10⁻⁷
Then take the negative log to find the pH:
-log(5.75x10⁻⁷) = 6.25
Mees' lines are white bands that form across your fingernails and are one of the symptoms of carbon monoxide poisoning.
Mees' lines are a sign that the growth of your nails temporarily stopped at one point. There are many causes to Mees' lines, and usually it indicates a toxicity. Carbon monoxide, along with other substances like arsenic, and selenium poisoning may cause them.
