Gửi ạ !
#hoidap24/7
Bé Bơ gửi ạ!
1.puvi9176,tìm cái câu hỏi là:
Trong tự nhiên đồng có hai đồng vị là⁶⁵Cu và ⁶³Cu. Biết nguyên tử khối trung bình của Cu là 63,5 . tính khối lượng ⁶³Cu trong 25 gam CuSo4.5H2O
chỉ nêu đc 1 ng hoi
Giup em voai tra loi nhanh nhat cho cau tra loi hay nhat em dang can gap
Giúp mình bài trong ảnh với ạ, mình cảm ơn
Mn giúp mik vs mk đang cần gấp ak
Viết một câu hoàn chỉnh bằng cách sử dụng các gợi ý: 1. Our school / built / since / 2010. 2. Encouraging / child / talk / explain / new words / increase his vocabulary 3. What /you / your children/do/ now? - We/ paint/ pictures. 4. If / you / spend time / play / children / they / learn / communicate / better. 5. She / look / glamorous / her new dress / so / I / cannot take / my eyes /off / her 6. Reading / books / a child / help / develop / language. 7. Children/ tend/ play/ better/ with/ same/sex friends. 8. Our TV/ break down/ last week/ so /we / going/ buy / new one soon. 9. My daughter/very clever/ so/she/ can/read/write/ when/she/only four. 10. The older / he / get / the less likely / he / stay actively. Mong mọi người giúp đỡ ạ!
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Exercise 2: Find and correct the mistakes 1. Don’t worry so much, I will finish the report before the manager returns from his business trip. 2. My mother will be at home by the time my brother is 2 years old. 3. Son is going to settle down here before he marries his girlfriend. 4. Your order will deliver to you before 9 am on July 20. 5. Minh will find a solution to this problem before time is up. Exercise 3: Give the correct form of verbs in the brackets 1. The train __________ (to arrive) at 12:30. 2. We __________ (to have) dinner at a seaside restaurant on Sunday. 3. It __________ (to snow) in Brighton tomorrow evening. 4. On Friday at 8 o’clock I __________ (to meet) my friend. 5. Paul __________ (to fly) to London on Monday morning. 6. Wait! I __________ (to drive) you to the station. 7. The English lesson __________ (to start) at 8:45. 8. Are you still writing your essay? If you __________ (to finish) by 4pm, we can go for a walk. 9. I __________ (to see) my mother in April. 10. Look at the clouds – it __________ (to rain) in a few minutes.
Tìm GTNN của 5x^2 - 4xy + x^2 - 4y + 15 x^2 - 2x + 4y^2 - 4y + 15 Giúp Mik vs ạ
Giúp em với ạ, cảm ơn rất nhiều
1. They have just sold that old house That old house ……………………………………………………………… 2. Charles lives quite near his aunt’s house Charles doesn’t ……………………………………………………………….. 3. It was such a hard cake that I couldn’t eat it The cake ………………………………………………………………………….. 4. Linh is a better cook than Hoa Hoa can’t …………………………………………………………….
dựa vào mẫu sau điền thơi gian vào các chỗ chấm sau đó viết thêm các hoạt động khác như đi tới trường ( go to school),thức giậy ( get up).... nhớ viết thêm thời gian làm những hoạt động đó luôn mẫu:
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