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1. Millions of newspaper and paper bags are being thrown away everyday.
2. For every ton of recycled newsprint, nearly ten trees can be saved.
3.Books published by Kim Dong publisher are being sold out so quickly.
4. The circus show attract the children.
5. We are going to a meeting being held by the Y.Y club.
6. Waste paper and old clothes will be collected for our mini-project.
1. Do you mind helping me put the chair away?
2. Vinh is always forgetting the homework.
3. It's very important to keep the environment clean.
4. People recycled old car tires to make shoes and sandals.
5. I haven't spoken to her for three years.
6. Tam used to type faster than she does now.
7. When did you start using the car?
8. We have lived here for 15 years.
9. How about meeting inside the center, at the cafe corner?
10. It's the first time i have ever eaten this kind of cake.
1. Do you mind putting this chair away ?
3. It' s im portant to keep the environment clean.
5. I haven' t spoken to her for three year.
6. Tam used to type fast.
8. We have lived hể for 15 years.
9. How about meeting inside the center, at the cafe corner ?
10.It' s the first time i have eaten this kind of cake.
1. Do you mind helping me put the chair away?
2. Vinh is keen on forgetting his homework.
3. It's very important to keep the enviroment clean.
4. People recyle old car tires to make shoes and sandals.
5. I haven't spoke to her for three years.
6. Tam used to type faster than now.
7. When have you started using the car?
8. We have lived here for 15 years.
9. How about meeting inside the center, at the cafe corner.
10. It's the first time I have eaten this kind of cake.
If the factory......continues............dumping poison into the lake, all the fish and other aqua animals will die
\(n_{O_2}=\frac{V}{22,4}=\frac{3,36}{22,4}=0,15\left(mol\right)\)
\(2KClO_3\rightarrow2KCl+3O_2\uparrow\)
\(0,1-----0,15\)
\(\Rightarrow m_{KClO_3}=n\cdot M=0,1\cdot122,5=12,25\left(g\right)\)
Vậy khối lượng KClO3 bị phân hủy là 12,25 ( g )
a) \(4Cr+3O_2\rightarrow2Cr_2O_3\)
b) \(2Cu+O_2\rightarrow2CuO\)
c) \(2Ca+O_2\rightarrow2CaO\)
d) \(4Al+3O_2\rightarrow2Al_2O_3\)
1. His family is said to have a lot of money in his house.
2. It is said that the train leaves at 12 a.m
3. Wind is said to have pass the exam last week.
4. We are said to have eaten Korean's food for 2 months.
5. Jun is said to be a handsome boy.
1. It is said that his family has a lot of money in his house.
2.It is said that train leaves at 12 a.m.
3.It is said that Wind ..... week.
4.It said that we have eaten .....
5.it is said that Jun is a handsome boy.