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Choose the word that has the underlined part pronounced differently for the rest.
1. a. this b. think c. thank d.thieves
2. a. gather b. bathe c. birthday d. weather
3. a. tooth b. breathe c. through d. earth
4. a. thirty b. than c. therefore d. those
5. a. mouth b. Thursday c. nothing d.worthy
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. the B. there C. think D. they
2, chịu
3, A. when B. where C. detective D. best
4, A. clumsy B. cute C. just D. but
5, A. weather B. newsreader C. teaching D. repeat
6, A. game B. relax C. national D. channel
1. C
2. D (nếu gạch chữ "th")
3. C (nếu gạch chân chữ "e" đầu của từ detective)
4. B
5. A
6. A
II. Choose the word whose underlined part is pronounced differently from the others . 1.A.bicycle B. exciting C. favorite D. widely
2.A. doctor B. opening C. gold D. poscard
3. A. farther B. earth C. both D. marathon
4.A. fear B. repeat C. idea D. really
5.A.hair B. fare C. prepare D. speaker
III. Choose the word whose underlined part is pronounced differently from the others. 1. A. arrived B. watched C. listened D. played
2. A. arrived B. watched C. stopped D. washed
3.A. they B. month C. father D. brother
4.A. ago B. open C. cold D. come
5. A. married B. called C. played D. rented
6. A. started B. worked C. waited D. wanted
IV. Choose the word whose underlined part is pronounced differently from the others 1. A. needed B. liked C. washed D. hoped
2. A. works B. plays C. wants D. stops
3. A. stayed B. listened C. cooked D. played
4.A. brother B. open C. some D. come
5. A. wanted B. excited C. needed D. bored
1. A. this B. think C. thank D. thieves
2. A. gather B. bathe C. birthday D. weather
3. A. tooth B. breathe C. through D. earth
4. A. thirty B. than C. therefore D. those
5. A. brother B. breath C. either D. clothes
6. A. hate B. air C. chair D. hair
7. A. prepare B. carry C. share D. fair
8. A. racket B. skateboard C. games D. player
9. A. favorite B. animal C. channel D. programme
10. A. cold B. photo C. continent D. poster
11. A. city B. capital C. nice D. excite
12. A. tomorrow B. tower C. crowd D. around
13. A. postcard B. come C. home D. so
14. A. programme B. sport C. most D. show
15. A. favorite B. night C. fine D. high