Age and apearnce not impartant
Nanny expierence are 2- 5 years
Must look after a five-year-old Girl
Must tidy up the girl's room
Working hours- 10 a.m.-7 p.m.
Tel. 025-674-7928
Said (если не ошибаюсь)
do - did
take-took
dance-danced
go- went
eat-ate
be-was,were
удачки
Необходимо написать какие предметы есть у Джейн и Джона в портфелях. Задать вопрос и написать ответ.
What has Jane got in her school bag? - Jane has got an eraser, a pen, a sharpener and an atlas in her school bag.
What has John got in his school bag? - John has got a ruler,a notebook and a notepad in his school bag.
What have Jane and John got in their school bags? - Jane and John have got a book, a pencil and a pencil case in their school bags.
"Многие дети в Великобритании одевают униформу когда идут в школу".
А сделать-то что нужно?
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.
