Каким из оксидов, формулы которых: CO2, CuO, Cl2O7, Р2O5, FeO, MgO, соответствуют основания? Запишите формулы этих оснований и дайте их названия

-Could you borrow a book for my friend? -Ssure. What does he look like? How old is he? -He is 11. He is thin and has brown eyes. His hair are short and dark. He will wear dark trousers. -Is he tall? -No, he isn't. -What is his name? -His name is John. -Ok, i will meet him. -Thank you very much. -You are welcome.