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Сполуки Кальцію

QuestionAnswer
Розміщення Кальцію в періодичній системі. Порядковий номер 20, період 3, група ІІ, підгрупа головна.
Скільки протонів в ядрі атома Кальцію? 20 протонів
Скільки електронів на зовнішньому енергетичному рівні атома Кальцію? 2 електрона
Який заряд має йон кальцію? 2+
Окисником чи відновником виступає металічний кальцій в хімічних реакціях? відновником
Назвіть найпоширенішу природну сполуку кальцію. Кальцит,
Яка речовина утворюється при взаємодії кальцію з киснем? Кальцій оксид
Які речовини утворюються при взаємодії кальцію з хлоридною кислотою кальцій хлорид та водень
Created by: 100002056699674
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