Question

Помогите пожалуйста!) Установите соответствие между степенью окисления первого элемента в столице соединении и химической формулой: А. +1 -- 1. Fe³O⁴ Б. +2. -- 2. FeO В. +3. -- 3.SnCl⁴ Г. +4 -- 4.KH -------------5. Fe Cl³

Answer 1

+1 KH
+2 FeO
+3 FeCl3
+4 SnCl4
+5 Fe3O4

Answer 2

Matching Oxidation States with Chemical Formulas:

To match the oxidation state of the first element in the compound with its chemical formula, we can use the following correspondences:

A. +1 → Fe3O4 B. +2 → FeO C. +3 → SnCl4 D. +4 → KH E. +5 → FeCl3

Let's verify these correspondences with the chemical formulas and their oxidation states:

- A. +1 → Fe3O4 - Iron (Fe) has an oxidation state of +3 in Fe3O4 [[1]]. - B. +2 → FeO - Iron (Fe) has an oxidation state of +2 in FeO [[2]]. - C. +3 → SnCl4 - Tin (Sn) has an oxidation state of +4 in SnCl4 [[3]]. - D. +4 → KH - Potassium (K) has an oxidation state of +1 in KH [[4]], and hydrogen (H) has an oxidation state of -1 in metal hydrides. - E. +5 → FeCl3 - Iron (Fe) has an oxidation state of +3 in FeCl3 [[5]].

Based on the provided correspondences, the correct matching would be: A → 3 B → 2 C → 4 D → 1 E → 5