February 2019 0 25 Report
Proszę o pomoc !!!

W urnie U1 jest 5 kul białych i 3 czarne, a w urnie U2 są 2 kule białe i 6 czarnych. Rzucany kostką do gry. Jeżeli wypadnie liczba oczek mniejsza od 3 to losujemy jedną kulę z urny U1 w przeciwnym wypadku z U2 oblicz prawdopodobieństwo wylosowania kuli białej.
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Proszę o rozwiązanie : W 50 g wody rozpuszczono 0,1 mola CuSO4 5H2O. Oblicz stężenie procentowe roztworu.
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Find the endings for each sentence. OVERCOME ........... DEFEAT....... FEEL THE URGE .......... YOU CAN'T TIRE......... and remember that ACCORDING ............. 1. to win, 2. of facing the challenge 3. obstades 4. your enemies 5. to Kar Lagerfeld : “Dieting is the only game where you win when you lose!”
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Complete the gaps using correct forms of the words given in brackets. 1. The film was ...................... gripping for the whole audience that was glued to their seats. (EXTREME) 2. He gave a perfect ....................and was rewarded with his boss' handshake. (RESPOND) 3. She finally ................................ in getting a job. (SUCCESS) 4. The book was a bit too lengthy and frivolous as for my ..................., I am afraid. (LIKE) 5. They literally disagreed about everything and were absolutely involved in a .................. discussion about politics. (HEAT) 6. He dared not cry or show any sign of ..................... (WEAK) 7. ................................, Kim Kardiashan is only known for being a celebrity not a woman of any special talent. (FAME) 8. It is quite ................................what he will do next. He is so weird that nobody really knows his ways. (PREDICT) 9. Although living in ..........................he managed to graduate from university and become a well-off businessman. (POOR) 10. He faced death but all in all he was only ..................injured after this terrible car accident. (SLIGHT)
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Complete the sentences using will, would, used to or didn't use to, If there are free tickets on offer, Susan ......................be the first in the queue. I .......................love visiting my grandparents. They always gave me sweets. My cousins ................................always visit us at Christmas. When I went to primary school I ...................... often stray into the corner sweet shop on my way home. I ..............................like football at school because I wasn't very good at it. Nothing's been done yet, has it? My big brother loves school and he .....................always ask for more homework on Fridays.
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Complete the sentences with the right form of the words in brackets. 1. The weather in England is completely ............., you never know whether to expect sun or rain. (predict) 2. I find this landscape ............, I never want to come back here. (threaten) 3. Discussing your strengths and ................. can be one of the most difficult parts of the interview. (weak) 4. It is natural to rephrase the query if a system returns no or ............. results. (satisfaction) 5. I get the .................. that she's very good at her job. (impressive) 6. Diplomats today do not always come to office with great family ............(wealthy) 7. .......... campaign is today necessary to market a product. (advertisement) 8. I find this painting ................., it evokes romantic feelings. (atmosphere) 9. They received .................... reply, and therefore were unable to take any decisions. (ambiguity) 10. Don’t even try to ................ what you mean – I don’t care. (explanation)
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Połącz antonimy : hilarious gripping uplifting awful weird ordinary delightful sad serious unexciting
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Choose the correct option : 1. She is very talkative. She always talks too much. She is very talkative. She .......... too much. (1. would talk, 2. tends to talk, 3. used to talk) 2. When I was a child I always spent my holidays in Greece. When I was a child I ............my holidays in Greece. (1. used to spend, 2. would spent, 3. tend to spend) 3. Do you read books a lot? No, I would want to read more than I do. Do you read books a lot? No, I ............. (1. don’t read as much as I’d like to, 2. used to read more, 3. don’t read so much as I’d like to) 4. When I visited my grandmother we always talked for hours. When I visited my grandmother we ...............for hours. (1. were talkiing, 2. tend to talk, 3. would talk) 5. I almost never eat meat, but I'm not really a vegetarian. I .................. eat meat, but I'm not really a vegetarian. (1. hardly never, 2. hardly ever, 3. almost ever) 6. My son constantly watches TV. My son watches TV ................ (1.all the time, 2. by and large, 3. now and again) 7. My friends never went on holidays with us, but now we always go together. My friends ................ on holidays with us, but now we always go together. (1. didn’t used to go, 2. wouldn’t go, 3. didn’t use to go) 8. In principle, I don't play computer games much. ............ I don't play computer games much. (1. once in a while, 2. by and large, 3. now and again) 9. I don't like any physical exercises, but I sometimes go jogging with my friend. I don't like any physical exercises, but I go jogging with my friend ................... (1. now and again. 2. Once in a blue moon, 3. as a rule) 10. I always stay in on Friday nights. ..................... stay in on Friday nights. (1. now and again, 2. constantly, 3. as a rule)
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Proszę o pomoc !!! Zad.12. W jakim stosunku należy zmiesza_ 0,1 molowy roztwór kwasu siarkowego(VI) z 3 molowym roztworem tego kwasu, aby otrzyma_ roztwór 1 molowy? Zad.13. Ile cm3 wody należy dodać do 50 cm3 33 procentowego roztworu wodorotlenku sodu o gęstości 1,36 g/cm3, aby otrzymać 6 procentowy roztwór tego wodorotlenku o gęstości 1,065 g/cm3?
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Proszę o pomoc !!! Zad.9. Zmieszano 15 g chlorku żelaza(III) i 125 g wody. Oblicz ułamki molowe składników otrzymanego roztworu. Zad.10. Oblicz stężenie molowe 9.259 procentowego roztworu kwasu siarkowego(VI) o gęstości 1,05 g/cm3. (0,99 M) Zad.11. Ile gramów wody należy dodać do 150 g 15 procentowego roztworu, aby otrzymać roztwór 3 procentowy?
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Proszę o pomoc !!! Zad.6. W 500 g wody rozpuszczono 7.455 g chlorku potasu. Oblicz stężenie molarne otrzymanego roztworu. Zad.7. Jakie ilości wody i siarczanu(VI) sodu należy zmieszać, aby otrzymać 600 g 0,2 molarnego roztworu? Zad.8. Do 199 cm3 wody dodano 1 cm3 2 molowego roztworu kwasu siarkowego(VI). Oblicz stężenie molowe otrzymanego roztworu
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