Write ionic formulas for the following compounds:
a. calcium bromide
b. potassium phosphide
c. iron (iii) oxide
d. iron (ii) oxide
e. magnesium hydroxide
f. nickel (iii) sulfate

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 .

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %