Pomocy! Język angielski Oxford Solutions Pre-Intermediate Podrecznik zad. 5 str. 98 Read the Look out! box. In your notebook, complete the sentences with the present simple or past simple passive of the verbs in brackets. 1. Mobile phones are owned (own) by about 4.3 billion people in the world today. 2. The best-selling phone ever was the Nokia 1100. More than 250 million ___________ (sell). 3. In Japan, mobiles ____________ (often / use) in the shower, so most of them are waterproof. 4. The average text message _____________ (usually / answer) within 90 seconds. 5. In 2012, 340,000 iPhones D _____________ (buy) every day. 6. Today, the internet ______________ (access) more often from a phone than from a computer. 7. More text messages ______________ (send) every year in the Philippines than in any other country. 8. The world's toughest phone ______________ (drop) 25 metres onto concrete and did not break.

Odpowiedź:

1. Anita went home because she was ill.

2. Sam didn't steal an mp3 Player from his best friend!

3 Neil left his e-reader on the bus.

4 My mum didn't give me any money to buy a new keyboard.

5 The CD player cost £39.

6. Where did you leave your tablet?

7. Who did you send your instant message to?

Powinno być okay :)

Odpowiedź:

Wyjaśnienie:

Zad.1

a. SO2

mSO2 = 32u + 2*16u = 64u

b. HCl to kwas beztlenowy

c. CO2

mCO2 = 12u + 2*16u = 44u

d. N2O5

mN2O5 = 2*14u + 5*16u = 108u

e. P4O10

mP4O10 = 4*31u + 10*16u = 284u

Zad.2

H2 + S = H2S gaz  siarkowodór

H2S gaz=[H2O]= H2Saq   kwas siarkowodorowy

Zad.3

a. H3PO4 =[H2O]=  H+ + H2PO4-

   H2PO4- =[H2O]= H+ + HPO4 2-

   HPO4 2- =[H2O]= H+ + PO4 3-

.....................................................................

   H3PO4 =[H2O]= 3H+  + PO4 3-

b. HNO3 =[H2O]= H+ + NO3-

c. HCl =[H2O]= H+ + Cl-

d. H2CO3 =[H2O]= H+ + HCO3-

    HCO3-  =[H2O]= H+ + CO3 2-

........................................................................

   H2CO3 =[H2O]= 2H+ + CO3 2-

Odpowiedź:

Natalie I'm reading Around the World in

80 Days... Have you read it?

Charlie No. Who's it by?

Natalie Jules Verne. He 2) wrote it in 1873.

Charlie Oh, I know him. 1) I read Journey to

the Centre of the Earth a few years ago.

Natalie (4). Did you like it?

Charlie Yes, it (5) was great. You should

read it. Last year, 16) I saw a TV

programme called Around the World

in 80 Days.

Natalie With Michael Palin? Yes, I remember

it. He (7) has made lots of travel

programmes.

Charlie He's really lucky. 1 (8)". I have never been to

a foreign country.

Natalie Haven't you? | 9).. I have been to one. Last year

|(10)... I went to Greece with my family.

Wyjaśnienie:

Odpowiedź:

1-mniej w soku owocowym

2-mniej w maśle

3-mniej w jogurcie naturalnym ;)

To wszystko ;)

Wyjaśnienie:Mam nadzieję że pomogłam