In a particular Bohr orbit for an electron in a He ion, the TOTAL energy is -6.045 eV. What is the kinetic and potential energy for the electron in this orbit

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius