Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Simply put, the number electrons transferred to the non metal (or chemical equivalent) MUST equal the number of electrons given away by the metal

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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