Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak. the loudness of bettina’s voice was changed by what type of energy?

The correct answer is Electrical Energy.

The authentic voice of Bettina is obtained through a transducer, which is the microphone which converts the sound energy to electric. it's far then amplified by an amplifier and introduced to the target audience by means of some other transducer, such as the speakers which changes the electrical energy lower back into sound energy at a louder stage.

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !