Question

Кількість атомів у формульній одиниці Ca(PO³)² становить а)3 б)8 в)9 г)5​

Answer 1

Ответ:

в) 9

Объяснение:

Са = 1

Р = 2

О = 3×2 = 6

Кількість атомів = 1+2+6 = 9

Answer 2

Кількість атомів у формульній одиниці Ca(PO₃)₂ становить 9.

Explanation:

To determine the number of atoms in a chemical formula, we need to count the number of each element present and multiply it by the subscript (the number written below and to the right of each element symbol).

In the given chemical formula Ca(PO₃)₂, we have: - 1 calcium atom (Ca) - 2 phosphate groups (PO₃)

Each phosphate group consists of 1 phosphorus atom (P) and 3 oxygen atoms (O). Therefore, we have a total of: - 2 phosphorus atoms (2P) - 6 oxygen atoms (3O x 2)

Adding up the number of atoms, we get: 1 calcium atom + 2 phosphorus atoms + 6 oxygen atoms = 9 atoms in total.

Therefore, the correct answer is в) 9.