Предмет: Химия, автор: adamvipo2020

Задание 4.
a) Составьте уравнения реакций серы и кальция с кислородом и
подчеркните продукты - оксиды.
б) Определите характер следующих оксидов: K-O, SOz, SrO, Na:O, SiO
Li2O, Cl2O7, P2O5 помогитепдпжпжжп

Ответы

Автор ответа: reshotdelete
1

Объяснение:

а) Уравнения реакций серы и кальция с кислородом:

1) Реакция серы с кислородом:

S + O2 -> SO2 (оксид серы)

2) Реакция кальция с кислородом:

2 Ca + O2 -> 2 CaO (оксид кальция)

б) Характер оксидов:

- K-O (оксид калия) - щелочной оксид

- SO2 (оксид серы) - кислотный оксид

- SrO (оксид стронция) - щелочно-земельный оксид

- Na2O (оксид натрия) - щелочной оксид

- SiO2 (оксид кремния) - амфотерный оксид

- Li2O (оксид лития) - щелочной оксид

- Cl2O7 (оксид хлора) - кислотный оксид

- P2O5 (оксид фосфора) - кислотный оксид

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