An element that has an electronegativity value of zero

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 .

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

List and describe the neurological effects of the vocs and other air pollutants,as described by dr.theo colborn