Un enlace covalente se forma cuando los elementos * A) poseen electronegatividad igual o semejante.
B) poseen electronegatividad muy diferente.
C) transfieren electrones entre sí.
D) se ubican en grupos lejanos entre sí en la tabla periódica.
E) ceden electrones.

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

Mg-26 and mg-24 are pair of isotopes. isotopes are defined as atoms of the same element having same atomic number but different mass number. i hope that was .