estos 12 elementos en seis pares de elementos que tengan propiedades similares: Ca, K, Ga, P, Si, Rb, B, Sr, Sn, Cl, Bi, Br ayuda :/
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Ответ:
The balanced reaction is:
Mg (s) + 2HCl (aq) --> MgCl 2 (aq) + H 2 (g)
We are given the amount hydrochloric acid to be used for the reaction. This will be the starting point of the calculation.
40.0 g HCl ( 1 mol HCl / 36.46 g HCl) (1 mol H2 / 2 mol HCl) (2.02 g H2 / 1 mol H2) = 1.11 g H2