Question

Определите степень окисления химических элементов в соединениях по их формулам. запишите названия этих веществ.1) SF6______________2) Na3N_____________3) CuCl2_______________4) PCl5______________5) N2O3_________________6) LiBr_____________7) MnO2_____________8) H2S__________________9) CaC2_______________10 MgO_________________

Answer 1

1) SF6 (S +6,  F (-1) фторид серы (VI)
2) Na3N (Na +1,N -1) нитрид натрия
3) CuCl2 (Cu +2, Cl-1) жлорид меди
4) PCl5 (P +5, Cl-1) пентахлорид фосфора
5) N2O3 (N +3, O-2) оксид азота(III)
6) LiBr (Li +1, Br-1) бромид лития
7) MnO2 (Mn  +4,O-2) оксид марганца(IV)
8) H2S (H+.S-2) сероводород
9) CaC2 (Ca +2,C-1) карбид кальция
10 MgO ( Mg +2, O -2) оксид магния

Answer 2

Determining the Oxidation States of Chemical Elements in Compounds

To determine the oxidation states of chemical elements in compounds, we need to analyze the formulas of the compounds provided. Here are the oxidation states for each of the compounds you listed:

1) SF6 (Sulfur Hexafluoride): - Sulfur (S) has an oxidation state of +6 [[1]].

2) Na3N (Sodium Nitride): - Sodium (Na) has an oxidation state of +1 [[2]]. - Nitrogen (N) has an oxidation state of -3 [[2]].

3) CuCl2 (Copper(II) Chloride): - Copper (Cu) has an oxidation state of +2 [[3]]. - Chlorine (Cl) has an oxidation state of -1 [[3]].

4) PCl5 (Phosphorus Pentachloride): - Phosphorus (P) has an oxidation state of +5 [[4]]. - Chlorine (Cl) has an oxidation state of -1 [[4]].

5) N2O3 (Dinitrogen Trioxide): - Nitrogen (N) has an oxidation state of +3 [[5]]. - Oxygen (O) has an oxidation state of -2 [[5]].

6) LiBr (Lithium Bromide): - Lithium (Li) has an oxidation state of +1 [[6]]. - Bromine (Br) has an oxidation state of -1 [[6]].

7) MnO2 (Manganese(IV) Dioxide): - Manganese (Mn) has an oxidation state of +4 [[7]]. - Oxygen (O) has an oxidation state of -2 [[7]].

8) H2S (Hydrogen Sulfide): - Hydrogen (H) has an oxidation state of +1 [[8]]. - Sulfur (S) has an oxidation state of -2 [[8]].

9) CaC2 (Calcium Carbide): - Calcium (Ca) has an oxidation state of +2 [[9]]. - Carbon (C) has an oxidation state of -2 [[9]].

10) MgO (Magnesium Oxide): - Magnesium (Mg) has an oxidation state of +2 [[10]]. - Oxygen (O) has an oxidation state of -2 [[10]].

I hope this helps! Let me know if you have any further questions.