Solution : An oxidation reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between tow species an oxidaion reductin reaction is any chemical reaction in which the oxidation number of a molecule atom or ion changes by gaining or losing an electron
2.43*1000.
There are 1000 grams in a kilogram
It’s considered the “universal solvent” because water dissolves more substances than any other chemical.