The advancements in steel
How is the concept of civilization a useful construct, and how is it not? It is useful when comparing to civilizations to each other. It is not useful when comparing a civilization and an uncivilized social order. ... Civilizations have a food surplus, city, is specialization of labor, and a social government form.
Coming from a kid who does virtual learning, I can truly say I’m slowly losing brain cells.
Answer:
In front of K would be 4, leave O2 blank, and 2 would be in front of K2O.
This chemical is known as Potassium Oxide.
<u>4 K + O2 = 2 K2O</u>
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