Respuesta :

count the elements in eqn  MgI2 + Br2 ->  MgBr2 + I2

1 Mg, 2I, 2Br on the left n

1 Mg, 2I, 2Br on the right

they are equal so the eqn is balanced

Both Br and I are part of the Halogen group. They have similar chemical properties. In this case, the chemical equation represents a displacement reaction in which the I in MgI2 is displaced by Br to form MgBr2:

MgI2 + Br2 => MgBr2 + I2

The equation is valid and balanced.

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