You are asked to smell a solution in a beaker. what is the best way of doing this?

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 .

What element breaks down into yttrium-90?

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?