Определите валентность элементов:Li2 Fe(OH)2 CH4 KI

my friend is not big. she is nice. she is brave and strong. she isn*t lazy. her nose is short. her eyes aiz are dark. she can iump and dance. she can cound and play chess well. she likes bananas and oranges. but she doesn*t like ham and milk. we go to school together. who is she?what is her name? where does she live?would you like to meet my frend? помогите перевести плизззззз....

квадрат разрезали на 2 одинаковые части.Периметр квадрата 32 см.Чему равен периметр каждой половинки квадрата.

А-16; Б-30 ;В-24; Г-14

Чем интересно с точки зрения выражения сказуемого предложение: Я стал на валежину и стал переобуваться (Арс.)?