Why do you think danny taught that way

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change. when the temperature in a room increases from 25°c to 33°c, changes from a solid to a liquid. in a lab, methane and nitrogen are cooled from -170°c to -200°c. the methane freezes and the nitrogen . when gold is heated to 2,856°c it changes from a liquid to a .

How many miles of water are produced if 5.43 mol pbo2 are consumed

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?