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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
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
\(n_{FeSO4}=n_{Fe}=0,035\left(mol\right)\)
\(m_{FeSO4}=0,035.152=5,32\left(g\right)\)
\(C\%_{FeSO4}=\frac{5,32}{99,72}.100\%=5,33\%\)
\(n_{CuSO4}=n_{Fe}=0,035\left(mol\right)\)
\(n_{CuSO4}dư=0,0625-0,035=0,0275\left(mol\right)\)
\(m_{CuSO4}dư=0,0275.160=4,4\left(g\right)\)
\(C\%_{CuSO4}dư=\frac{4,4}{99,72}.100\%=4,41\%\)
1. Choose the word whose underlined part is pronounced differently.
1. A evening B. well C. leg D. left thing B. they C. there than B close D. photo D. correct
II. Choose the best option to complete the sentence
. 1.If we.... water, a lot of fish will die.
Bpollute A. recycle C. drink D. save
2. What are you going to do. on Sunday morning?
C. on the A. in Bon D. in the
3. I help you? Yes, I'd like some beef please
A. Do B. Am C. Would D. Can
4.Unless we stop cutting down trees, we can't prevent floods and other natural disasters
A. will stop B. don't stop D. won't stop
5.Thuy is thirsty. She likes some.....
A. bread B. rice C. vegetables D. orange juice
6. time is it?- It's five o'clock.
A. How B. Where C. When D/What
7. What's the weather... in Sapa?
A. to like B likes C. like D. liking
8 Lan is very hungry. She wants some
A. ice-cream B. coffee C. noodles D. lemonade
-Cái đề cậu sắp xếp đúng với ạ, nếu cái google lens hay cậu dùng cái gì thì tớ không biết nhưng mà lấy từ ảnh ra chưa chắc nó đã đúng trật tự đâu, hoặc là nếu bạn đánh máy thì bạn nên xem lại cách bạn đánh để nó có trật tự, hơn nữa cái đề cậu để dính nhau thế kia thì nhìn khó nhìn + không thuận mắt nữa, mong bạn gửi lại đề cho chính xác (Đặc biệt là bài 1)!
1. A. there B. theatre C. earth D. anything
2. A. anything B. them C. neither D. weather
3. A. think B. than C. Thursday D. third
4. A. father B. they C. the D. thick (thick chứ sao lại thich nhỉ?)
5. A. than B. thin C. through D. month
1A
2A
3B
4D
5A