papers are usually delivered at 8 in the morning, they are being looked through at the moment and you’ll get yours soon. 2. dresses are made preferably of cotton in hot countries. this wonderful costume is being made specially for this performance now. 3. what strange sounds! – oh, our piano is being tuned. 4.where is your car? – it is being filled in the garage at the moment. 5. tea is usually laid on the balcony in fine weather. 6. we are finishing the last preparations for the party: the lights are being switched on, the floors are being cleaned, the tables are being laid. do you think we’ll be ready on time? 7. i’ve got two questions to you. first: “what language is spoken all over the word? ” second: “what language is being spoken in this room? ” 8. the witness is being questioned by the police-inspector now. 9. the old motor-way is used by many people, but it’s not very convenient, that’s why a new ring-road is beind built in the city. 10. our luggage is being examined at the customs now. any luggage going abroad is usually checked here. 11. we are given a lot of advice by our parents. 12. all the contracts are signed by the president. 13. you’ll have your copy soon, the contract is being typed. 14. you can’t use the fax now, it is being fixed. 15. lots of people are operated on in this clinic. and now unfortunately my uncle john is being operated on here. 16. most cameras are made in japan. 17. what are you doing here in the hall? – my room is being cleaned. 18. can you hear footsteps behind? we are being followed. 19. this bill is often referred to. 20. he is such a nice chap. why is he so often laughed at?
CaO + H₂O = Ca(OH)₂
MgO + H₂SO₄ = MgSO₄ + H₂O
CuO + 2HCl = CuCl₂ + H₂O
P₂O₅ + 3H₂O = 2H₃PO₄
CO₂ + Ba(OH)₂ = BaCO₃ + H₂O
SO₂ + 2NaOH = Na₂SO₃ + H₂O
2KOH + CO₂ = K₂CO₃ + H₂O
NaOH + HNO₃ = NaNO₃ + H₂O
Cu(OH)₂ + 2HCl = CuCl₂ + 2H₂O
Ba(OH)₂ + K₂SO₄ = 2KOH + BaSO4
3KOH+Fe(NO₃)₃ =Fe(OH)₃ + 3KNO₃
Cu(OH)₂ = CuO + H₂O
H₂SO₄ + 2KOH = K₂SO₄ + 2H₂O
2HNO₃ + Ca(OH)₂ = Ca(NO₃)₂ + 2H₂O
CuO + 2HNO₃ = Cu(NO₃)₂ + H₂O
2Al + 6HCl =2AlCl₃ + 3H₂
2Cu(NO₃)₂ = 2CuO + 4NO₂ + O₂
NH₄Cl = NH₃ + HCl
AgNO₃ + HCl =AgCl + HNO₃
Fe(NO₃)₃ + 3NaOH = Fe(OH)₃ + 3NaNO₃
CaCl₂ + Na₂SiO₃= CaSiO³ + 2NaCl
2KMnO₄ + 16HCl = 2MnCl₂+ 2KCl + 5Cl₂ + 8H₂O
8Al + 3KClO₄ + 12H₂SO₄ = 3KCl + 4Al₂(SO₄)₃ + 12H₂O
Cl₂+4KMnO₄+2H₂SO₄=2KCl+4MnSO₄+K₂SO₄+2H₂O
4FeS₂ + 11O₂ = 2Fe₂O₃ + 8SO₂
4HNO₃конц. + Cu =Cu(NO₃)₂ + 2NO₂ + 2H₂O
8HNO₃конц. +3 Mg = 3Mg(NO₃)₂ + 2NO + 4H₂O
6HNO₃конц. + K = 4KNO₃ +NH₄NO₃ + H₂O
P+5HNO₃ (конц.) =H₃PO4 + 5NO₂ ↑+ H₂O
2Р + 5Н₂SО₄ = 2Н₃РО₄ + 5SО₂↑ + 2Н₂О
H₃PO₃ + 2AgNO₃ +H₂O=H₃PO₄ + 2Ag + 2HNO₃
3KBrO = KBrO₃+ 2KBr
2MnSO₄+ 5PbO₂+ 6HNO₃ = 3Pb(NO₃)₂ +2PbSO₄ + 2H₂O + 2HMnO₄
K₂MnO₄ + Cl₂ = KMnO₄ + 2KCl
Cr₂(SO₄)₃ + 2KMnO₄ + 7H₂O= K₂Cr₂O₇ + 2Mn(OH)₄ + 3H₂SO₄