please help . a 100 gram sample of metal undergoes a temperature change from 20 degree c to 50 degree c after absorbing 1,500 j of thermal energy. The specific heat of the metal will be what ?

Why does a cake rise when you bake it? ♡

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Why is nh3 classified as a polar molecule