First of all write a balanced equation.
4Na + O2 -> 2Na2O
You are starting with a mass of sodium. You need to use sodium’s molar mass. Take this quantity times mole to mole ratio between sodium and sodium oxide to get moles of sodium oxide produced.
.141 moles of sodium oxide produced
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<span>Fermentation is a metabolic process that changes sugar to acids, gases, or alcohol. It happens in yeast and bacteria, and also in oxygen-starved muscle cells, as in the case of lactic acid fermentation.</span>
I have no idea lol Sorry I couldn't be some help:)