This is the observation

When a white salt is heated, brown gas is released, the gas turns moist blue litmus paper, red.

When a green salt is heated, colourless gas released, the gas turns lime water chalky.

When a white salt is heated, residue is brown when hot and yellow when cold.

When a white salt is heated, Residue is yellow when hot and white when cold.

Explanation:

I hope it helps.

Sorry if I'm wrong.

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.

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