How many grams of PbBr2 will precipitate when excess CaBr2 solution is added to 67.0 mL of 0.738 M Pb(NO3)2 solution

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 .

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?