bn có thể viết roc cụ thể hơn đc ko ạ

a, PT: \(Cu+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2Ag\)

_______a_______2a_________________2a (mol)

Ta có: m _tăng = m_Ag - m_{Cu (pư)} 

⇒ 3,04 = 2a.108 - 64a

⇒ a = 0,02 (mol)

⇒ m_Cu = 0,02.64 = 1,28 (g)

m_Ag = 0,02.2.108 = 4,32 (g)

b, \(C_{M_{AgNO_3}}=\dfrac{0,02.2}{0,2}=0,2\left(M\right)\)

Subject: Changes in My Family Hi Hoai, I hope this email finds you well. I wanted to share some recent changes in my family. My sister just started university, and we’re all very proud of her. She’s studying engineering and seems to enjoy it a lot. Meanwhile, my dad got a new job closer to home, so we get to spend more time together, which has been wonderful. My mom has also taken up gardening, and our backyard is now full of beautiful flowers and vegetables. These changes have brought us closer as a family, and I feel really happy about it. How about you? Any updates on your side? Looking forward to hearing from you soon! Best wishes, Dien

Nowadays, people prefer living in the city to living in the countryside and so do I. However, there are also some disadvantages I dislike about it. First, the city has the education and entertainment more developed than in the countryside. I love studying at a great school, espeacially I want to study advanced English. After school I can watch movies in the cinema, drink coffee at café, ... in order to relax. Nevertheless, I hate the noise in the city. As we know every city has a variety of motobikes, cars, ... so that it's very noisy all the time even at night. In conclusion, there are many advantages and disavantages about city but in my opinion, I really want to live here.