cần bao nhiêu gam NaOH để pha chế 300 ml dd có pH =10

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1. complete the sentences with there is or there are 1. ............ 25 students in the class 2. ......a big wardrobe in my sister's room 3. .......a computer and a tv in my room 4. ....... good programs on television 5 . ......... some furniture in my bedroom 6. .......... four eggs in the fridge 7. ........ a lot of water in the bottle 8. .......... no paper in the printer 2 . complete the questions with Is there or Are there. Then write short anwers 1. .... ......many shops in your town ? Yes, ............. 2. .......... a post office near here ? No, ........... 3. ........... a table and chairs in the kitchen ? Yes, ........ 4. .......... any tress in your garden? No, ............... 5. .......... a book under the table ? No, .......... 6. .......... any girls in the class ? Yes,.......... 7. ............ any coffee in the cup? No,...................... .8. ........... a lot of children in the yard? No,........ 3. Use the words to write positive (+) and negative (-) sentences and questions (?) with there is/ there are 1. a bath in the bathroom (?) ....………............................... 2. some shops near our new house (+) ........................................ .3. a school in the neighbourhood (?) ............................... 4. a television in my bedroom (-) .......................................... 5. any cupbroads in the dining room (?) .................………………......... 6. a swimming pool behind the house (+) ....…………………………… 7. any flowers in the garden(-) ...................................... 8. a lot of posters on the wall(+) ...........................………………