Chemistry help please??? (thanks!!)?

black lab lover

New member
Hi---Could someone please help me with this? I am struggling. PLEASE explain your answers so I can follow you. Thanks to all....all help is greatly appreciated.

An analysis of an unknown compound found it contained 39.86 grams potassium, 28.04 grams chromium and 57.10 grams of oxygen.


a) What is the empirical formula for this compound? Show the work you did to determine the formula.



b) What type of compound is it, ionic, covalent or a combination of both? Explain your choice.
 
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