Answer:
Element: A substance that cannot be decomposed into simpler substances by ordinary chemical means. EXAMPLES: Gold, iron, carbon, hydrogen, oxygen, nitrogen.
Explanation:
an atom cannot be broken down
Sodium oxide is the product
4Na+O2->2Na2O
Both acid and base
Because
Acid + Base → Water + Salt
606 atoms
Add the numbers 145 + 293 + 168
