Предмет: Химия, автор: olku4

Обчислити еквівалент та еквівалентну масу Бісмуту в сполуках: BiCl3, NaBiO3, BiOCl,BiO2NO3, Bi2O3.

Ответы

Автор ответа: oficiant

Э(BiCl3)= 315,5/3= 105,2

Э(NaBiO3)= 280/6= 46,7

Э(BiOCl)= 260,5/3= 86,9

Э(BiO2NO3)= /10= 303/10=30,3

Э(Bi2O3)= 466/3= 155,4

Эквивалентная масса(Э) равна делению молекулярной массы соединения на валентности металлов в этом соединений,которую находить лучше через степени окисления,так как они совпадают численно в болтшинстве случаев

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Текст :
Children
Children are youngsters who are under the legal age of responsibility or
emancipation. In most states this age is 18 years. There are some groups of children who need care and supervision of specialists. These are runaway children,
exceptional children, adultified children, stolen children, latchkey children, home
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because of unusual mental, physical, or social abilities or limitations, require
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facilities designed to help them reach their potential. Other such children may be those with physical disabilities and deformities, mental disorders, special talents, very high intelligence, or unusual physical abilities.
A youth who, because of family relationship patterns, psychopathology, or socioeconomic circumstances, is compelled to assume roles and responsibilities normally reserved for older people, is called an adultified child. An example is a child who is a primary caregiver for younger siblings as well as meal preparer,
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1. наблюдение со стороны специалистов;

2. необычные формы обучения;

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4. социальный опыт;

5. лечение;

6. высокий интеллект

2. Найдите в тексте и новой лексике синонимы к следующим терминам

children; latchkey children; thrownaway children.

3. Закончите предложения, используя следующие слова и выражения
adultified child; control; clients; facilities; divorce.

1. Children run away because they want to remain independent of their parents’ ….

2. Special educational training … are designed to help «exceptional children»
reach their potential.

3. … assumes roles and responsibilities normally reserved for older people.

4. Children are often stolen after a ….

5. Different groups of children become … of social workers.

4. Выберите те предложения, с утверждениями которых вы согласны и переведите их на русский язык

1. All children need care and supervision of social workers.

2. A runaway child departs the home contrary to the wishes of his or her parents.

3. The term «exceptional children» is referred only to children with physical disabilities and deformities.

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parent.

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1. A runaway child is …
2. A latchkey child is …
3. An adultified child …
4. Stolen children are …
5. Exceptional children …
6. Children are …

a) … youngsters who are under the legal age of responsibility or emancipation, in most states this age is 18 years.

b) … require extraordinary forms of education, social experience, or treatment.

c) … youths who have been abducted from the legal custodial parent.

d) … a youngster who comes home from school to spend part of the day unsupervised.

e) … a minor who has departed the parents home contrary to the parents wishes.

f) … assumes roles and responsibilities normally reserved for older people.

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