Please help me to solve the following problem
1. Galvanization is applying a coating of: (1) Cr (2) Cu (3) Zn (4) Pb
2. Which of the following atoms has the highest first ionization energy? (1) Na (2) K (3) Sc (4) Rb
3. In the Hofmann bromamide degradation reaction, the number of moles of NaOH and 2 Br used per mole of amine produced are: