Question

помогите пожалуйста надо очень

Answer 1

Ответ:

Mr[H2] = Ar[H] * 2 = 1.00794 * 2 = 2.01588 = 2

Mr[O2] = Ar[O] * 2 = 15.9994 * 2 = 31.9988 = 32

Mr[H2O] = Ar[H] * 2 + Ar[O] = 1.00794 * 2 + 15.9994 = 18.01528 = 18

Mr[Ca(OH)2] = Ar[H] * 2 + Ar[Ca] + Ar[O] * 2 = 1.00794 * 2 + 40.078 + 15.9994 * 2 = 74.09268 = 74

Mr[H2SO4] = Ar[H] * 2 + Ar[O] * 4 + Ar[S] = 1.00794 * 2 + 15.9994 * 4 + 32.065 = 98.07848 = 98

Mr[C6H12O6] = Ar[C] * 6 + Ar[H] * 12 + Ar[O] * 6 = 12.0107 * 6 + 1.00794 * 12 + 15.9994 * 6 = 180.15588 = 181

Объяснение: