What is an oxide? And whats the formula for the oxides of sodium, calcium and aluminium.?
The egg dye will not be permament, will fade and run when you wash the fabric.
An example of an oxide is rust which is the oxide of iron, it's usually when a metal has been left exposed to oxygen, but that's not the limit by any meansAnyways to answer your questions Na typically has a +1 charge, and oxygen will have a -2 charge, so we need two Na for every one oxygen Na2O Calcium has a 2+ charge so we can get a 1:1 ratio here CaO Aluminum I think I remember has a +3 charge, but look that upSo first we have to make +3 even, so we need two aluminums, leaving us with a +6 chargeThat means we need three O2- to balance out the charge giving us Al2O3 Hope that helps
