In a hair dryer, if current follows a SINGLE path through the heater and the fan, the circuit in the hair dryer is connected

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.