find the word which has different sound in the part underlined.
1. A.ago B. boring C. explore D.story
2. A.hold B.icon C. open D. cold
3. A. mention B. question C action D. education
4. A.who B. when C. where D. what
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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. who his -> whose
2. typing -> type
3. too -> so
4. writing -> written ; childrent -> children
5. Thanks -> Thank ; who -> which
1. The polar icecaps are melting because one effect of global warming is that sea levels are rising.
2.Because of there are much better levels of nutrition, the global population has increased.
3.Nuclear explosions and detonations of nuclear weapons lead to radioactive pollution.
4.Air pollution is rising as a consequence of more and more road are being built.
5.In the last ten years, many BC valleys have been clearcut so142 species of salmon have become extinct.
6.The fish and other aqua animals have died due to the water is polluted.
1.A 2.B 3.B 4.A