Changes in the appearance of emission and absorption spectrums are caused by the activities of electrons.
When you transmit an amount of light on atoms, the state of the energy of electrons will become higher. Why? Because it is absorbing the light's energy. Not all wavelengths will be absorbed by the atoms, only selective.
I hope that the explanation is enough to prove that it is the correct answer. Have a nice day!
Hi friend
--------------
Your answer
-------------------
Water = H2O
Number of molecules in one mole of water = 6.022 × 10²³ [Avogadro's constant]
Given number of molecules = 2.52 × 10²³
So,
------
Number of moles =

HOPE IT HELPS
to balance this equation, we will count the number of atoms of particular element in both sides, and then to balance the numbers we prefix the number so balanced equation for this is:
S + 2HNO3 --> H2SO4 + NO2
Answer:
yes
Explanation:
protons and neutrons are parts of elements