một số sáng kiến đó là:

- Sử dụng túi giấy, túi vải thay thế túi ni-lông;

- Khuyến khích các nhà phân phối, các nhà bán lẻ tham gia chương trình giảm phân phát túi ni-lông.

- Xây dựng hệ thống thu gom,tái sử dụng túi ni-lông

- Tuyên truyền nâng cao nhận thức khi xả túi ni-lông ra môi trường,cộng đồng,...

Dân cư trên thế giới phân bố không đều do sự ảnh hưởng của nhiều yếu tố như điều kiện tự nhiên, tài nguyên, phát triển kinh tế, văn hóa và lịch sử.

thế nào

PTHH: Fe + 2HCl -> FeCl2 + H2\(\uparrow\)
            x       2x.          x            x     (mol) 

          FeO + 2HCl -> FeCl2 + H2O 
            y         2y          y                   (mol) 
số mol khí H2 thu được ở đktc: 
nH2 = \(\dfrac{V}{22,4}\)= \(\dfrac{6,72}{22,4}\)= 0,3 (mol) 

ta có hệ PT: \(\left\{{}\begin{matrix}56x+72y=60\left(g\right)\\x=0,3\left(mol\right)\end{matrix}\right.\)

giải hệ PT ta được: \(\left\{{}\begin{matrix}x=0,3\left(mol\right)\\y=0,6\left(mol\right)\end{matrix}\right.\)

khối lượng của Fe trong hỗn hợp: 

mFe = n.M = 0,3.56 = 16,8 (g) 

thành phần phần trăm khối lượng của Fe trong hỗn hợp: 

\(\%m_{Fe}\)\(=\dfrac{m_{Fe}}{m_{h^2}}\)\(\times\) 100% = \(\dfrac{16,8}{60}\times100\%=28\%\)

The name of my robot is Lucie. It is a smart robot with its appearance like a real human. My robot can do the washing and cleaning. In addition, it can help in checking the temparature in the house and makes nessessary change. What's more, it can help me with my homework and practising English. I want to have it because it can be a good friend.

     In the future, i would like to have a robot. The robot name's T6, its a home robot, it can do the dishes, do the laundry, cook meal, clean rooms and its super smart. I want to have it because i can help me do all the housework and play games with me.

1 Robots can work as guards at important places

2 Ha Noi is famous for its delicious street food

3 What type of house will you live in the future?

4 Pack your lunch in a lunch box in stead of plastic bag

Q1 Robots can work as guards to guard important places.

Q2 Hanoi is famous for its delicious street food.

Q3 What type of house you will live in the future?

Q4 Pack your lunch in a lunch box instead of in a plastic bag.

.

..

When I am a road user I should not traffic rule specifically I should not go through red lights ride my bike on the sidewalk or use my phoneehile moving. These actions are very dangerous for me and others

Part 3:

1.​No, we shouldn't. Because alcohol makes the driver lose focus and can cause dangerous accidents

2.​I prefer to watch films in the cinema because the big screen and sound system make the movie more exciting.

3.​I think it is very good because it helps us preserve our cultural values and enjoy time with family

4.We should turn off the lights when leaving the room and use energy-saving light bulbs

1. Context two student( a boy and a girl) are studying in a library or a bookstore

1,The picture shows tow people studying,

They are sitting together and reading books

2,The picture shows a woman charging an electric car

She is standing next to the car at a charging station

3,The picture shows people at the lim festival

Thay are enjoying traditional music and activities

4,The picture shows a worker installing solar panels

He is working on a rooftop using tools

1. My name is Quy

2. I ride my bike every day, usually to school or for exercise / It's about 2 kilometers

3. I love horror movies

4. Ịoined a Music Festival last summer. It was so loud and exciting

5. We mainly use electricity for everything, from lighting to coking

Cảm oen cô