SALT
The salt (NaCl) is a pure substance.
It’s compesed of sodium(Na) and of cholrine(Cl).
The chlorine is a very toxic element that was used in the second mundial war. And the sodium is a soft, silvery-white metal.
When it’s dissolved in water the sodium is joined with the oxigen atom,
And the chlorine is joined with the two hidrogen atoms.
The metal atoms (Na) become positive ions (Na+) but the non-metal atoms (Cl) became negative ions (Cl).
There is attraction between these oppositely charged ions.
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