Why is it important to mark the solvent level on the chromatography paper as soon as you remove it from the petri dish?

Explanation:

The importance of marking the solvent level on the chromatography is -

Since ,

the solvents are volatile in nature and if they are not marked immediately , the solvent can get evaporated , and the exact level of the solvent would be lost , and hence ,

it will give an inaccurate data of the experiment .

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.