1. (a) Al- 5+
H- 1+
Cl- 1-
(b) Al- 2,8,3
2. (a) Covalent bond
(b) yes, they share electrons to attain stability
3. (a) yes
(b) Al + HCl --> Al[tex]Cl_{3}[/tex] + [tex]H_{2} [/tex]
4. 2Al + 6Hcl --> 2Al[tex]Cl_{3} [/tex] + 3[tex]H_{2}[/tex]
i don't know 5 and 6
