Sodium has a mass number of 23amu. Since sodium has 11 protons, the number of neutrons must be 23 – 11 = 12 neutrons.
Temperature is a statistical quantity. The formal definition<span> is T = dU/dS, the change in internal </span>energy<span> with respect to entropy holding volume and particle number constant. A practical </span>definition<span> comes from the fact that the atoms, molecules, or whatever particles in a system have an </span>average kinetic energy<span>.</span>
Answer:
Silver reacts with hydrochloric acid to liberate hydrogen gas.
Explanation:
2Ag+2HCl=2AgCl+H2
In this reaction silver and hydrochloric acid are the reactants.They undergo chemical reaction to form a precipitate of silver chloride(AgCl) along with the liberation of hydrogen gas(H2).
Lithium 7 has an equal number of protons and neutrons.
