Partition these numbers as in the example.

23) Which of the following processes is easy to occur? a) \( \mathrm{V}_{2} \mathrm{O}_{5} \rightarrow \mathrm{V}_{2} \mathrm{O}_{3} \) b) \( \mathrm{KMnO}_{4} \rightarrow \mathrm{Mn}_{2} \mathrm{O}_{3} \) c) \( \mathrm{TiCl}_{2} \rightarrow \mathrm{TiCl}_{4} \) d) \( \mathrm{Fe}_{2} \mathrm{O}_{3} \rightarrow \mathrm{FeSO}_{4} \)

Kakvi su organizmi bakterije s obzirom na veličinu i građu?

\( = 8 ^ { 3 } + \overline { ( 8 ^ { 2 } \times 5 ) } + \overline { ( 8 ^ { 2 } \times 5 ) } + \overline { ( 8 ^ { 2 } \times 5 ) } + ( \overline { 8 \times 5 ^ { 2 } } ) + ( 8 \times 5 ^ { 2 } ) + ( 8 \times 5 ^ { 2 } ) + 5 \)

(1) 44880 N 12

14 (a) Simplify \( \frac{6 e^{2}}{21 e f} \div \frac{3 d e}{28 f^{2}} \)