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Mn ơi giúp mik nhanh vs ah em đng cần gấp lắm huhu

Calli : Haizz NL : ko cho mik hay nhất thì toàn bảo lỡ :(

giúp mình với ghi kết quả thôi đc r ạ

Cần gấp ai giúp e vs Give the correct form of the word given to complete the sentences. 1. In big cities, there are many wealthy people, but __________is still a problem. (poor) 2. Life must be __________in the slums. (difficulty) 3. The kids look __________enough to go out now. (health) 4. The air in the city is very __________. (pollute) 5. We’ll make this beach clean and __________again. (beauty) 6. The most popular __________ at recess is talking. (act) 7. Many young people are doing __________ service. (common) 8. Living in the city is __________ than living in the countryside.​(noisy) 9. If you want to have a __________ body, you should play sports. (health) 10. We have ____________ work to do in the afternoon than in the morning. (little) 11. Wind power is convenient and ___________​. (abundance) 12. At this time next week, we ___________English grammar. (study) 13. Many poor people in ________ countries don’t have modern sources of energy. (develop) 14. In the future, the wind and the sun _________ as the most important energy sources. (use) 15. My father used ___________a lot of time for the festivals. (spend) 16. The first symptom of the disease is a very high __________. (temperate) 17. The long hot summer has led to serious water__________. (short) ​ 18. To have hundreds of___________ people sleeping in the streets of a rich city like London is a crime. (home) 19. Average___________ for skilled workers are rising. (earn)​ 20. We lived in rented__________ before buying this house. (accommodate)

Tách riêng từng muối ra khỏi dd : Zn(NO3)2 và Fe(NO3)2

Hòa tan 25 gam CuSO4 vào nước được dung dịch 20%.Khối lượng dung dịch thu được là bao nhiêu?

Giúp em với ạ , em rất là cần gấp huhuuuu

hạn 9h là nộp rồi ạ, mong các anh chị làm giúp em

Có 100 cái điện trở. $R_1=5Ω; R_2=3Ω;R_3=\frac{1}{3}Ω$ Hỏi phải dùng mỗi loại bao nhiêu cái điện trở để khi mắc nối tiếp được $R_{tđ}=100Ω$