What is the percent composition by mass of nitrogen in nh4oh?

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 moles of al3+ ions are in 1.25 moles of al2o3

What does the mass of 0.7891 mol of ferric oxide (fe2o3)