Sodium (Na) and chlorine (CI) can react chemically to form table salt (NaCl). How does the mass of the table salt formed in this reaction compare to the mass of the sodium and chlorine before the reaction takes place?

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

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Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

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