Are ionic compounds flexible or brittle

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 .

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?