The general formula for finding pH is:
![pH=-log[ H _{3}O ^{+}]](https://tex.z-dn.net/?f=pH%3D-log%5B%20H%20_%7B3%7DO%20%5E%7B%2B%7D%5D%20)
-> This equation could also work with H+.
So using the formula and plugging in the hydronium ion concentration:
So
the solution has a pH of 13.7.
Answer:
A. There must be a change in chemical properties.
At least 2 or 3 atoms must change for it to be considered chemical. There must be some type of reactants that will change this. Otherwise, it's not a chemical reaction.
Hope this helps!
Number of moles = 2.25 mols
volume <span>of the solution = 3.00 L
</span>
Therefore :
molarity = moles / volume
m = 2.25 / 3.00
=> 0.75 M
An example of an exothermic reaction will be formation of ice
I believe the correct answer is the fourth option. A molecule refers to two or more atoms held together by covalent bonds. These atoms could be the same element or different elements. The bonding of the atoms would result to a neutral charge or a charge of zero. Examples are O2, H2O, HCl.
