Balance the equation:When solid sodium is dropped into dilute hydrochloric acid, hydrogen gas is evolved and sodium chloride solution
is produced.
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Relative atomic mass or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant. The atomic mass constant is defined as being 1/12 of the mass of a carbon-12 atom.
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The balanced chemical equation looks like this
2Na(s)+2HCl(aq)→2NaCl(aq)+H2(g)
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