<span>1. If I lived in Moscow, I would visit the Tretyakov Gallery every year.
2. If she knew English, she would try to enter the university.
3. If mother bought a cake, we would have a very nice tea part.</span> или <span>If mother buys a cake, we will have a very nice tea part.</span>
6
1 I didn't see that film last night.
2 They could cycle 50 km in a day.
3 Did you get an email this morning?
4 She didn't sleep in a tent on her holiday.
5 Did they clean their classroom last week?
6 He travelled to India last winter.
7 We didn't stay in a hotel in London.
8 Did she have a computer in her room?
Buffer solutions, depending on their composition, are divided into 2 main types:
acidic and basic.
Acid buffering systems are usually formed by a weak inorganic or
organic acid and a salt of the same acid with a strong base.
For example:
1) CH3COOH + CH3COONa - acetate buffer
weak acid salt acid
2) H2CO3 (H2O + CO2) + NaHCO3 - hydrocarbonate or
weak acid salt acid bicarbonate buffer.
Basic buffer systems are formed by weak inorganic or
organic base and a salt of this base with a strong acid. For example:
1) NH3 · H2O (NH4OH) + NH4Cl - ammonia buffer
weak base salt
2) C2H5 – NH2 + C2H5NH3Cl - ethylamine buffer
weak base salt
Basic buffer systems are formed by weak inorganic or
organic base and a salt of this base with a strong acid. For example:
1) NH3 · H2O (NH4OH) + NH4Cl - ammonia buffer
weak base salt
2) C2H5 – NH2 + C2H5NH3Cl - ethylamine buffer
weak base salt.
2) In my opinion, most Russian students learn English at school because it is the most common international language. It will help schoolboys and schoolgirls achieve their goals in future career if they want to be the best and work as an international specialist.
3) I use English mostly for communicating with people from abroad. Furthermore, I like reading books by English authors in original as well as watching films in English.
Артур! Cookie! Там `ы что-то не так с Трикси! Может быть, она `ы спать. Я рявкнул на нее, но она не было `т move.Let` ы пойти и посмотреть. Нет, смотри! Она просто развернулся! Эй, Трикси! Какое `ы не так? Уходи, я `м. занят! Трикси! Являются ли они все твое? <span>Артур, какие они? Они `ре котята, Raskal! Ах, ах!</span>