X , Y and Z are the samples of water obtained from different sources. The types of salt dissolved in them are labelled in the picture. Now , Answer the following questions. i. Identify the hardness of water that can be removed by boiling process.
ii. Which of them is soft water ?
iii. Write the chemical equation of the reaction that takes place when Z is treated with X , Y and Z.

~Random/Irrelevant answers will be reported!

I .calcium carbonate

ii.Magnesium chloride

iii.CaCO3 + MgCl2 → CaCl2 + MgCO3

Hope it helps:)

~ʆᵒŕ∂ཇꜱꜹⱽẻⱮë

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.