Answer:
Acid :
Conjugate base :
Base:
Explanation:
According to the Lewis concept :
- An acid is defined as a substance that accepts electron pairs .
- Base is defined as a substance which donates electron pairs.
According to the Bronsted-Lowry conjugate acid-base theory:
- An acid is defined as a substance which looses donates protons and thus forming conjugate base .
- A base is defined as a substance which accepts protons and thus forming conjugate acid.
Given reaction :
is acting as an acid because it is accepting hydroxide ion.And after accepting hydroxide ion it forms its conjugate base that is
Since, is acting as an acid will obviously act as base.
For that you have to use the Aufbau principle
For example, writing the electronic configuration of Fe(28)
I recommend that you memorize the aufbau principle. Once you learn it, you don’t need anything else except the atomic number of the element to write it’s electronic configuration.
Answer:
Molar mass of FeCl2 = 126.751 g/mo
55.845 + 35.453*2
<span>Energy is absorbed and then released to form an emission line.
When electrons absorb energy they increase there energy level. This is only temporary and the excited electron then relaxes back down to its original energy level releasing energy.
The energy is released in form of EM radiation of a specific frequency depending on the element and how many energy levels the electron relaxes.
This forms an emission line.</span><span />