Question 1: Which of the following is an example of an exothermic chemical reaction?
1 answer:
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The negative log function that determines the acidity or alkalinity by hydronium ion concentration is called pH.
The substance having high will have:
Option B. A low and a high
This characteristic can be explained as:
- The concentrations of
and
are inversely dependent on each other so when the concentration of raises then the concentration of
- The pH of a solution or substance is calculated with the help of:
From the formula, it can be deduced that when the concentration of is high then the pH has a low value and it means that the solution is acidic.
- pH can also be written as:
From this formula we can that when the value of pH is less then the value of pOH will be increased and vice versa.
Therefore, when pOH is in high concentration then is low.
To learn more about pH and pOH follow the link:
Answer:
Covalent
Explanation:
A molecule of C₂H₅OH has C-C, C-H, C-O, and O-H bonds.
A bond between A and B will be ionic if the difference between their electronegativities (ΔEN) is greater than 1.6.
No bond has a large enough ΔEN to be ionic.
C₂H₅OH is a covalent molecule.
