thành phần theo khối lượng của hỗn hợp a

... trung tính: A A2, A4 B A1 , A5 C A3 , A5 D A6 , A1 E Tất sai Câu 26: Dung dịch sau điện phân có tính bazơ: A A2, A4 B A1 , A3 C A2 , A4 , A6 D A3 , A6 E Tất sai Câu 27: Cho dd ch a ion: Na+, K+, Cu2+, ... Trừ AgCl, HgCl, PbCl2 không tan a số muối không tan, trừ cacbonat Na, K, NH4+, số cacbonat axit tan đợc a số muối không tan Các phốt phát Na, K, NH4+, số cacbonat axit tan đợc Chỉ có sunfua K, ... (do A tạo ra) VD: Hoà tan Na Al vào nớc: Na + H2O = NaOH + 1/2H2 Al + H2O + NaOH = NaAlO2 + 3/2H2 * Khi kim loại tan nớc tác dụng với axit có hai trờng hợp xảy ra: - Nếu axit d: có phản ứng axit...

Ngày tải lên: 20/09/2015, 06:03

... SUBJECTS MAY HAVE IN THE LISTENING CHECKING PREDICTION: GRID: Friday 7.00 English 7.50 8.40 Geography Music 9.40 10.30 Physics History Saturday 1.00 2.40 3.40 4.30 Physical Education Math English ... Math English Physics INTER VIEW: • • • • • 1.What time you get up? 2.What time classes start? What time they end? What time you have lunch? 5.What time you go to bed? ... Physical education (n) Thể dục 1.New words: Physics (n) vật lý 1.New words: History (n) Lịch sử 1.New words: Geography (n) Đ a lý 1.New words: Biology (n) Sinh New words: • • • • • Physical education(n):...

Ngày tải lên: 20/09/2013, 22:10

... best / because / language / to learn / international / it / is / he / an => He likes to learn English best because it is an international language chemistry / Marie Curie / awarded / ... homework has He usually (have) breakfast at 6.30 but tomorrow he (have)will have breakfast at 6.00 Exercise After he (do) the homework, he had done (go) the cinema went had already given ... so far everyday? A to travel B traveling C travel D travels Exercise 39 Suddenly everybody stopped A talk B to talk C talking D talked 49 Do you want with you or you want to go alone? A me...

Ngày tải lên: 27/09/2013, 08:10

... This is a very strong material, so it won’t wear……… easily A. off B.out C.on D.up 18 Nowadays, many students have to wear……….when they come to school A. new clothes B.casual clothes C.informal clothes ... with his classmates A for B at C in D on 10 I met him…….the entrance to the village just this morning A. on B.in C from D at 11 She doesn’t like Spanish,…….she has to study the language A though ... it is necessary for students uniforms at school a to wear b wearing c wore d wear 15 Wearing uniforms helps students feel ………… in many ways a the same b different c unequal d equal 16 Which...

Ngày tải lên: 28/09/2013, 19:10

... a She has a tall nose short / has / Ba / hair Ba has short hair Unit 10: Lesson 1: A1 -2-5/ p.104-106 I Vocabulary: hungry (adj): ®ãi thirsty kh¸t (adj): full (adj): no hot (adj): nãng cold (adj): ... Thursday, January 14th , 2010 * Put the words in the correct orders to make sentences: face / a/ she / has / round She has a round face eyes / his / are / brown His eyes are brown nose / has / tall ... tired mÖt (adj): (to) feel: c¶m thÊy Unit 10: staying healthy Lesson 1: A1 ,2,5 P104-106 * Vocabulary: - cold ( adj) : lạnh - hot (adj) : nóng - full (adj) : no - hungry (adj) : đói - tired (adj) :mệt...

Ngày tải lên: 11/10/2013, 04:11

... đồng l a a lake trees a river a rice paddy a park flowers a b c d e f Đầm sen True or false statements Thuy is 13 years old Thuy lives in the country There is a lake, a hotel, a park, a rice paddy ... I have a brother, Minh He’s twenty We live in a house near a lake Our house has a yard It’s beautiful here There is a river and a lake There is a hotel near the lake There is a park near the ... hotel near lake - There is a …… river and a …… park - There are …… trees flowers and……… in the park 1) Learn by heart new words and write places near your house 2) Prepare lesson ( A4 – A5 / Page...

Ngày tải lên: 14/10/2013, 14:11

... the class and asks the Ss to practice: 1/Ba: How are you? 2/Lan: Hello, Ba 3/Lan: I/m fine thanks, and you? 4/Ba: Fine, thanks 5/Lan: Hi, Ba -Asks the students to close their books and rearrange ... the dialogue -Asks the students to listen the tape III While - Practice: -Play the tape A5 twice 13ms -Asks the students to check their task -Shows the way to ask and answer about the health + ... - Ask: And you? - Answer: Fine, thanks - Imagine the situation and guess - Practice - Close their books and rearrage - Listen to the tape - Listen - Check their task - Listen to the teacher and...

Ngày tải lên: 14/10/2013, 14:11

... that ? It’s a bank What is that ? It’s a supermarket 3 Practice with a partner a) Ex: What is that? It’s a hotel What are those? They are flowers Is b) Ex: a hotel near your house? Yes , there ... practice with a partner a Vocabularies b Model sentences c Now work with a partner Ask questions about their house Listen and read Then match the questions and answers a Listen and choose the ... there are tall (5) ……… Here is a photo Write soon Love, Nga b Read the letter and match the questions and answers a Is there a flower garden in front of the house? A Yes, it is b Is the house beautiful...

Ngày tải lên: 19/10/2013, 04:11

... muối axit 4,025 gam ancol Khối lượng este có khối lượng phân tử nhỏ có hỗn hợp A A 4,625 gam B 5,55 gam C 1,275 gam D 2,20 gam Câu 42 Cho dung dịch Ba(HCO3)2 vào dung dịch: CaCl2, Ca(NO3)2, NaOH, ... dịch NaOH 1,5M Nếu cho 8,2 gam hỗn hợp tác dụng với lượng dư dung dịch AgNO3 NH3, đun nóng thu 21,6 gam Ag Tên gọi X A axit metacrylic B axit acrylic C axit propanoic D axit etanoic Câu 20 Hai este ... 26 Hỗn hợp X gồm HCHO CH3CHO Oxy h a m gam hỗn hợp X (hiệu suất 100%) thu hỗn hợp Y gồm axit tương ứng có dY/X= a, giá trị a A 1,36 < a < 1,53 B 1,26 < a < 1,47 C 1,62 < a < 1,75 D 1,45 < a

Ngày tải lên: 30/03/2014, 10:20

... number Fr as ratio between inertia and gravity and Ra as ratio between radiation and heat advection as well as , h and as length ratios between jet length, hole height, diameter and disk radius, ... Hlod, A. , Aarts, A. C.T., van de Ven, A. A.F., Peletier, M .A. : Mathematical model of falling of a viscous jet onto a moving surface Eur J Appl Math 18, 659–677 (2007) 18 Hlod, A. , Aarts, A. C.T., van ... program of Algorithm is then realized with FLUENT as master tool After the air flow simulation FLUENT starts MATLAB MATLAB governs the parallelization of the jets computation via MATLAB executables...

Ngày tải lên: 21/06/2014, 06:20

... lỗi sai câu sau phần gạch A, B,C D: I have dinner in a restaurant last week A B C D I will go to the movie theater yesterday A B C D I play football yesterday A B C D I ate more much candy A B ... must to drink a lot of water every day A B C D Those is too much coffee A B C D I only has a little and I need it A B C D He is a well soccer player A B C D You ought clean your room A B C D 10 ... /people play / watch it all around the world → Swimming can / fun but accidents / happen → Being aware / the risks is the safe way / water play → My brother / a good...

Ngày tải lên: 05/07/2014, 09:00

... I DO A. My day: 1/ Listen and repeat Then practice with a partner 2/ Look at exercise A1 again Ask and answer with a partner a. What does Nga every day?  Every day, she gets up at six b.What does ... DO A. My day: Listen and repeat Then practice with a partner UNIT 5: THINGS I DO A. My day: Listen and repeat Then practice with a partner * New words: Day (n) Ngày, ban ngày Play (v) Chơi Game ... Then practice with a partner * New words : - Day (n) - Play - Game - Games (v) (n) (n) - Homework (n) - Do the homework (v) Look at exercise A1 again Ask and answer with a partner a/ Every day,...

Ngày tải lên: 14/07/2014, 05:00

... the weather like in the fall? It is cool in the fall Spring,summer, fall and winter are … the seasons Warm,hot,cool and cold are … Warm,hot,cool and cold are the weather What is the weather like ... (n) Hot (a) Season (n) - seasons I Newwords Spring (n) Summer (n) Fall (n) = Autumn (n) Winter (n) Warm (a) Cool (a) Cold (a) Hot (a) Season (n) Seasons Weather (n) The weather The seasons cool ... ướt Weather (n) lạnh March, 2009 Unit 13: ACTIVITIES AND THE SEASONS Section A: The weather and seasons Lesson 1: A 1-2 I.Newwords Fall (n) Cool (a) Winter (n) Cold (a) Spring (v) Warm (a) Summer...

Ngày tải lên: 14/07/2014, 19:00

... blue Look and say What colour is it ? It’s white Look and say What colour are they ? - They are brown Look and say What colour are they ? - They are black Look and say What colour are they ... Look and say What colour are they ? - They are brown black yellow Saturday,March 26 th 2010 UNIT 12 : OUR CLOTHES SECTION A 1,2,3 Look and say What colour is it ? It’s red Look and say What colour ... s¾c Mẫu câu -What colour are they ? - They are màu s¾c 2 Look and say What colour is it ? It’s red blue white brown black yellow What colour are they ? - They are Look and say What colour is...

Ngày tải lên: 16/07/2014, 14:00

Ngày tải lên: 05/08/2014, 09:20

Ngày tải lên: 05/08/2014, 09:20

Ngày tải lên: 06/08/2014, 16:23

... 5’-AAGTGCGTTGTGCGGTAGC-3’; cyclin E, sense, 5’CTGGCTGAATGTTTATGTCC-3’ and antisense 5’-TCTTTGCTTGGGCTTTGTCC-3’; PCNA, sense, 5’-GCCCTCAAAGACCTCAT CAA-3’ and antisense, 5’-GCTCCCCACTCGCAGAAAAC-3’; ... 5’-GCTCCCCACTCGCAGAAAAC-3’; and HPRT, sense, 5’CGGGGGAC ATAAAAGTTAT-3’ and antisense, 5’-GGACGCAGCAACAGACATT-3’ After running the amplified PCR products of each gene on a 1.8% agarose gel, the gels were dried at 80oC ... for 60 and exposed to a Phosphoimaging plate (Fuji, Minami-Ashigara) for days After autoradiography, the imaging plate was scanned on an Image Reader BAS-2500 (Fuji, Tokyo) For quantification...

Ngày tải lên: 07/08/2014, 14:23

... - Mr Hai is a farmer He has some paddy fields and he produces a lot of rice Near his house, he has a small field and he grows a few vegetables He also has a few fruit trees They produce a little ... Hai has some animals He has two buffaloes They plow the paddy fields and pull a cart He has a few cows They produce a little milk He has some chickens They produce a lot of eggs He also has a ... a dog and two cats Some A lot of + A few countable noun (danh từ đếm được) Some A lot of + uncountable noun A little (danh từ không đếm được) some a few a) a little b) potatoes d) c) tomatoes...

Ngày tải lên: 31/01/2015, 05:00

... reading a book: đọc sách letter writing a letter: viết thư drawing a picture: vẽ tranh singing a song: hát a b c d writing a letter reading a book drawing a picture singing a song What are you ... I’m drawinga apicture I’m writing aletter I’m reading asong singing book Wednesday,November 6th,2013 Unit four: Section A (1,2,3) Look and say reading a book drawing a picture writing a letter ... letter singing a song What are you doing ? I’m singing a song What are you doing ? I’m writing What are you doing ? I’m reading a book What are you doing ? I’m drawing a picture Wednesday,November...

Ngày tải lên: 14/02/2015, 17:00