Which two elements have properties of both metals and nonmetals? beryllium (Be)
iron (Fe)
silicon (Si)
tellurium (Te)
tungsten (W)

silicon

khagaram battari a noob phathau na na na na na

the answer to this predicament is false, by friend, i had this on a quiz, and i got it wrong, so i learned it, cos i was gonna have it on a test, and i got it right

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.