Предмет: Химия, автор: Sevati2014

ПОМОГИТЕ!!!!!!!

Определите строение атома водорода по положению в Периодической системе. Укажите положение водорода в Периодической системе, напишите схему строения его атома и электронную формулу.

Водород восстанавливает неметаллы.Допишите уравнения реакций:
Н2+F2=
H2+Cl2=
H2+O2=
H2+S=
H2+N2=
Назовите продукты реакций.

Водород может восстанавливать металлы из их оксидов:CuO + H2 = Cu + H2O     составьте ОВР

По отношению к активным металлам водород может выступать окислителем:Na + H2 = NaH составьте ОВР

Ответы

Автор ответа: MariaKumacheva
0
Водород - это неметалл.
Находится в первой группе главное подгруппы, в первом ряду.
Порядковый номер - один. 
Степени окисления - максимальная (+1), минимальная (-1).
Заряд ядра +1, один энергетический уровень.
Атомная масса равна одному.
Электронов- один, протонов - один, нейтронов- ноль.
Формула водорода: H2

Н2+F2 = 2HF (фтороводородная кислота)
H2+Cl2= 2HCl (соляная кислота)
2H2+O2= 2H2O (вода)
H2+S= H2S (сероводород)
3H2+N2= 2NH3 (аммиак)

CuO + H2 = Cu + H2O 
H2(степень окисления ноль) - 2e = 2H (степень окисления +1) - восстановитель
Cu( степень окисления +2) + 2е = Cu (степень окисления ноль) - окислитель.
 

2Na + H2 = 2 NaOH
Na(0) - 1e = Na(+1) - восстановитель
H2(0) + 2e = 2H(-1) - окислитель.
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