Identify the acid , base, conjugate acid and conjugate base for HClO 4 (aq)+H 2 O(l) <> H 3 O^ + (aq)+ClO 4 ^ - (aq)

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

that tool would be a compass

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.