user-avatar
cuboi28012002
2 năm trước
1. Nhỏ vài giọt phenolphtalein vào các bazo nào sau đây thì dung dịch phenolphtalein chuyển màu hồng? A. Mg(OH)2, KOH, Zn(OH)2, Al(OH)3 B. NaOH, KOH, Ba(OH)2, Ca(OH)2 C. Fe(OH)3, Al(OH)3, Cu(OH)3, Mg(OH)3 D. Pb(OH)2, Cu(OH)2, KOH, Fe(OH)3
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

We went to the seaside last weekend. we had a great time ! We swam and played beach volleyball all day.Last night we ate fish? Do you like fish? My cousins came with us, too. My mother and my father set under the umbrella all day. Dad read a book and Mum wrote some postcards.I collected some seashells and brought them to home. We miss you! Love Helen 1. Did they go to seaside? .......... Yes, they did................................... 2. Did they like their holiday? ........... Yes, they did................................ 3. What did they all do? ........ They swam, played beach volleyball, ate fish, set under the umbrella, collected................ 4. Did they eat fish or chicken? ...... hey ate fish......................... 5. What did her cousin do? ................ He swam, played beach volleyball, ate fish 6. What did her mum and dad do?................................ 7. What did she collect? ......................................................................

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team