Escriba las fórmulas de los siguientes compuestos iónicos:

A) óxido de sodio

B) sulfuro de hierro (que contenga el ion Fe 2+)

C) Sulfato de cobalto (que contenga los iones Co 3+ y SO 2- (arriba) y 4 (abajo)

D) Fluoruro de bario

what is the question here. i think you messed up.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )

d

explanation: