The temperature and pressure increases as you go deeper into the earth.
Answer:
The heating and melting of wax
Explanation:
When a candle is burned the wax heats up, but when cooled it hardens and cannot be put back into it original form.
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No, phosphorus is not a metal, In fact, it is a non metal which means that it isn't metal. If you look at the periodic table, the word phosphorus, is in group 15.
Answer:
The open system evaporates the solvent in the solution
Explanation:
An open system is a system in which exchange of materials and energy can occur. If a TLC set up is left open, then the set up constitutes an open system.
During TLC, the sample is dotted on the plate and inserted into a suitable solvent. The solvent moves up the plate and achieves the required separation of the mixture.
Most of these solvents used used TLC are volatile organic compounds. Therefore, if the TLC set up is left open, the solvent will evaporate leading to poor results after running the TLC experiment.