Answer:
Chemically, table salt consists of two elements, sodium (Na) and chloride (Cl). Neither element occurs separately and free in nature, but are found bound together as the compound sodium chloride.
Explanation:
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Nobel gas, it is in the last row of the periodic table and therefore is a noble gas
Ba(NO₃)₂ + Na₂SO₄ → 2NaNO₃ + BaSO₄
The reaction goes to completion because it has the same amount of elements in the reactants and products.