Ph? kín l??ng ki?n th?c v?i h? th?ng ngân hàng h?n fifteen.000 câu h?i ??c quy?nOpt for a, B, C or D which can be the antonym on the underlined text. Then write the correct respond to on The solution sheet.Hòa tan h?n h?p X b?ng fifty ml n??c c?t, ???c dung d?ch màu xanh l?c l?t. Cho t? t? HCl two M vào cho t?i khi dung d?ch chuy?n h?n sang