Question

Помогите прошу 8 класс!! 20 балов

Answer 1

Ответ:

Mr (H2SO4) = 1 × 2 + 32 × 1 + 16 × 4 = 98

Mr (H3PO4) = 1 × 3 + 31 × 1 + 16 × 4 = 98

Mr (C6H12O6) = 12 × 6 + 1 × 12 + 16 × 6 = 180

Mr (NH3) = 14 × 1 + 1 × 3 = 17

Mr (K2O) = 39 × 2 + 16 × 1 = 94