Hi Ellie, I’m so pleased you can come surfing in August! Paul, Rose and Kevin are coming too, so
there will be five of us. We decided to return to New Sands, because the surf board hire is so
cheap there.
I’m starting to think about accommodation. We won’t camp again after last year! I hated
staying in a tent in all that rain!
Kevin wants to hire a caravan. There are some nice ones with 3 bedrooms, showers and
cooking facilities. The problem is, none of the caravan parks take short bookings in the
summer. The minimum stay is a week. It’s a shame because there are several nice parks near
the beach.
There’s a youth hostel in New Sands. It’s the cheapest option after camping, and there is a
big kitchen and dining room where we can cook. The problem is, accommodation is in
dormitories and I don’t really want to sleep with strangers.
There are a few guesthouses in New Sands. Some have triple rooms, so we would only
need to book two rooms. They’re not expensive, but we wouldn’t be able to cook there. We
would have to eat out at restaurants, or eat sandwiches for every meal! We’ll have to book soon
if we choose that option, because many guest houses are already full. The hotels in New Sands
are far too expensive, even though I would love to stay at the Sunrise Pavilion with its rooftop
The final option is to rent a cottage. Few cottages offer mid-week breaks in summer, but I
found one. It has three bedrooms - a double, a single and a twin, so two of us would have to
share a bed! There is a big kitchen diner with a microwave, washing machine and dishwasher.
The living room has a TV and DVD player. There is just one bathroom, but there is a separate
WC. There is a nice garden too. The problem is, it’s 5 miles from the beach, so we’d have to
hire a car, because there aren’t any buses.
Let me know which option you prefer.
2 The friends want to stay in New Sands for…
A) A week
B) A week and a half
C) Less than one week
D) Three weeks
ответ: Для приготовления 3 литров 30% сиропа необходимо взять 1017 г сахара и 2373 г воды.
Дано:
V(p-pa) = 3 л = 3000 мл
ρ(р-ра) = 1,13 г/мл
ω(сахара) = 30% или 0,3
Найти:
m(H2O)-?
m(сахара)-?
Объяснение:
Находим массу раствора сиропа:
m(p-pa) = ρ(p-pa)*V(p-pa) = 3000 мл*1,13 г/мл = 3390 г
Находим массу сахара в сиропе:
m(сахара) = m(p-pa)*ω(сахара) = 3390 г*0,3 = 1017 г
Находим массу воды:
m(H2O) = m(p-pa) - m(сахара) = 3390 г - 1017 г = 2373 г
ответ: Для приготовления 3 литров 30% сиропа необходимо взять 1017 г сахара и 2373 г воды.
У Вас небольшая ошибка в написании продуктов реакции.
У бария максимальная степень окисления +2, а значит такого соединения, как у Вас в реакции Ba(ClO3)3 - не может быть.
6 Ba(OH)₂ + 6 Cl₂ = 5 BaCl₂ + 2 Ba(ClO₃)₂ + 6 H₂O
Cl₂° + 2e ⇒ 2Cl⁻ I 5 I восстановление, окислитель
Cl₂° - 10e ⇒ 2Cl⁻⁵ I 1 I окисление, восстановитель
Если же Вам надо уравнять именно то, что у Вас написано, то тогда коэффициенты будут следующие:
18 Ba(OH)2 + 19 Cl2 = 16 BaCl2 + 2 Ba(ClO3)3 + 18 H2O
Но еще раз повторю, что формула такого вещества, как Ba(ClO3)3 - не верна!
Объяснение :вот ответ с тебя лайк и лудший ответ