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63,5 g - 6,02 × 10²³at.Cu
12,8g - x at.Cu
x = 1,2 × 10²³ at Cu
2)
44g - 6,02 × 10²³cz. CO₂
xg - 2 × 10²³ cz. CO₂
x= 14,62g CO₂