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Keq=[H2][Cl2]/[HCl]2
This is a synthesis reaction in which sodium and chlorine combine to form sodium chloride. It can also be called a combination reaction.
Cl2 because its mass is approx. 35 so multiply by 2 and then its 70 & thats the highest mass of all of them
A. Of the choices listed, the helium atom is the smallest in both size and mass, and so its behavior is more "ideal." 1.He(g) Of the choices listed, the helium atom is the smallest in both size and mass, and so its behavior is more "ideal."