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1. A. worked B. stopped C. forced D. wanted
2. A. kissed B. helped C. forced D. raised
3. A. confused B. faced C. cried D. defined
4. A. devoted B. suggested C. provided D. wished
5. A. catched B. crashed C. occupied D. coughed
6. A. agreed B. missed C. liked D. watched
7. A. measured B. pleased C. distinguished D. managed
8. A. wounded B. routed C. wasted D. risked
9. A. imprisoned B. pointed C. shouted D. surrounded
10. A.failed B. reached C. absored D. solved
11. A. invited B. attended C. celebrated D. displayed
12. A removed B. washed C. hoped D. missed
13. A. looked B. laughed C. moved D.stepped
14. A. wanted B. parked C. stopped D.watched
15. A. laughed B. passed C. suggested D. placed
16. A.believed B. prepared C. involved D. liked
17. A.lifted B. lasted C. happened D. decided
18. A. collected B. changed C. formed D. viewed
19. A. walked B. entertained C. reached D. looked
20. A.admired B. looked C. missed D. Hoped
- A. Teach. B. Great. C. Speak. D. Beach
- A. Play. B. Make. C. Machine. D. Late
- A. Pyramid. B. Sydney. C. Dry. D Hungry
- A. Energy. B. Electricity. C. Effect. D. Environment
- A. Pollution. B. Solar. C. Symbol. D. Reason
- A. Charity. B. Exchange. C. Channel. D. Character
- A. President. B. Sea. C. Reuse. D. Design
- A. Dad. B. Hat. C. Plant. D. Happy
- A. Ask. B. Plas. C. Back. D. Grandparent
- A. Tomato. B. Natural. C. Bath. D. Garden
- A. That. B Tap. C. Backpack. D. Traffic
1. a. fox b. pig c. pet d. lion
2. a. documentary b. channel c. cartoon d. comedy
3. a. comedian b. popular c. educational d. national
4. a. wildlife b. dolphin c. game show d. cartoon
5. a. newsreader b. MC c. weathergirl d. TV guide
Phonetics: Choose the word whose underlined part is pronounced differently:
1. A. tooth B. clothing C. bath D. both
2. A. gather B. monthly C. father D. brother
3. A. though B. thank C. through D. thin
4. A. clip B. give C. twice D. stupid
5. A. studio B. documentary C. cute D. stupid
a)\(Fe+CuSO4-->Cu+FeSO4\)
b) \(n_{Fe}=\frac{1,96}{56}=0,035\left(mol\right)\)
\(m_{CuSO4}=\frac{100.10}{100}=10\left(g\right)\)
\(n_{CuSO4}=\frac{10}{160}=0,0625\left(mol\right)\)
Do \(0,036>0,0625\Leftrightarrow\) \(n_{Fe}< n_{CuSO4}\)
=> CuSO4 dư.Tính theo n chất hết (Fe)
Chất rắn B là Cu
\(n_{Cu}=n_{Fe}=0,035\left(mol\right)\)
\(m_{Cu}=0,035.64=2,24\left(g\right)\)
c) m dd A =\(m_{Fe}+m_{ddCuSO4}-m_{Cu}=1,96+100-2,24=99,72\left(g\right)\)
dd A là FeSO4 và CuSO4 dư
\(n_{FeSO4}=n_{Fe}=0,035\left(mol\right)\)
\(m_{FeSO4}=0,035.152=5,32\left(g\right)\)
\(C\%_{FeSO4}=\frac{5,32}{99,72}.100\%=5,33\%\)
\(n_{CuSO4}=n_{Fe}=0,035\left(mol\right)\)
\(n_{CuSO4}dư=0,0625-0,035=0,0275\left(mol\right)\)
\(m_{CuSO4}dư=0,0275.160=4,4\left(g\right)\)
\(C\%_{CuSO4}dư=\frac{4,4}{99,72}.100\%=4,41\%\)
I. Pronunciation: Find the word which has a different sound in the part underlined.
1. A. theater B. through C. there D. three
2. A. brother B. breath C. either D. clothes
3. A. favorite B. animal C. channel D. programme
4. A. studio B. documentary C. cute D. industry
5. A. prize B. excite C. capital D. design
6. A. designed B. received C. cycled D. rewarded
7. A. tomorrow B. tower C. crowd D. around
8. A. crowd B. cow C. snow D. shower
9. A. house B. colour C. blouse D. housework
10. A. cow B. slow C. window D. know
11. A. play B. island C. train D. paint
12. A. can B. jam C. sand D. Smart
13. A. schedule B. contest C. racket D. every
14. A. yesterday B. send C. destination D. exciting
15. A. karate B. exhausted C. equipment D. pedal
Giai nhanh giup minh vs ak minh can gap
1. a. Japan b. Iceland c. New York d. Finland
2. a. newsreader b. MC c. weathergirl d. TV schedule
3. a. documentary b. channel c. cartoon d. comedy
4. a. comedian b. popular c. stupid d. national
5. a. romance b. horror film c. game show d. cartoon
Choose the word (A, B, C or D) which is stressed differently from the others.
1. A. programme B. documentary C. education D. entertain
2. A. skyscraper B. skateboarding C. schedule D. fantastic
3. A. remote B. repeat C. recorded D. ringing
4. A. marathon B. energy C. pollution D. popular
5. A. television B. information C. atmosphere D. company
1. A
2. C
3. B
=)
1. D
2. A
3. D