Question

УРОВЕНЬ-1 ВАРИАНТ – 1 Дано: N., KOH, H,0, BaSO4, Si, PH3, Na,SO, Ba, ZnO,NO3, HClp-p), NaCI, H,CO3, Mg(OH)2, H3PO4, К-0, H,SO4,NaOH, CaCO3, MgO, Fe(OH)3, СІ,1. Распределить вещества по группам и классам:​

Answer 1

оксиды: ZnO, NO3,MgO,K2O,H2O2

гидроксиды: KOH,Mg(OH)2, NaOH,Fe(OH)3

кислоты: HCl, H3PO4,H2SO4, H2CO3

Соли: BaSO4,  NaCl, CaCO3

фосфины:PH3

металлы: Ba

неметаллы: N2, Si,Cl2

Answer 2

Task: Group and classify substances

To group and classify the given substances, we need to identify their chemical formulas and properties. Let's go through each substance and categorize them accordingly:

1. N: The symbol "N" typically represents nitrogen, which is a nonmetal. We can classify it as a nonmetal.

2. KOH: This is the chemical formula for potassium hydroxide. It is an ionic compound composed of the metal potassium (K) and the polyatomic ion hydroxide (OH-). We can classify it as an ionic compound.

3. H2O: This is the chemical formula for water. It is a covalent compound composed of two hydrogen atoms (H) and one oxygen atom (O). We can classify it as a covalent compound.

4. BaSO4: This is the chemical formula for barium sulfate. It is an ionic compound composed of the metal barium (Ba) and the polyatomic ion sulfate (SO4^2-). We can classify it as an ionic compound.

5. Si: The symbol "Si" represents silicon, which is a nonmetal. We can classify it as a nonmetal.

6. PH3: This is the chemical formula for phosphine. It is a covalent compound composed of one phosphorus atom (P) and three hydrogen atoms (H). We can classify it as a covalent compound.

7. Na2SO4: This is the chemical formula for sodium sulfate. It is an ionic compound composed of the metal sodium (Na) and the polyatomic ion sulfate (SO4^2-). We can classify it as an ionic compound.

8. Ba: The symbol "Ba" represents barium, which is a metal. We can classify it as a metal.

9. ZnO: This is the chemical formula for zinc oxide. It is an ionic compound composed of the metal zinc (Zn) and the nonmetal oxygen (O). We can classify it as an ionic compound.

10. NO3-: The symbol "NO3-" represents the nitrate ion. It is a polyatomic ion composed of one nitrogen atom (N) and three oxygen atoms (O). We can classify it as a polyatomic ion.

11. HCl: This is the chemical formula for hydrochloric acid. It is a strong acid composed of one hydrogen atom (H) and one chlorine atom (Cl). We can classify it as an acid.

12. NaCl: This is the chemical formula for sodium chloride, which is common table salt. It is an ionic compound composed of the metal sodium (Na) and the nonmetal chlorine (Cl). We can classify it as an ionic compound.

13. H2CO3: This is the chemical formula for carbonic acid. It is a weak acid composed of two hydrogen atoms (H), one carbon atom (C), and three oxygen atoms (O). We can classify it as an acid.

14. Mg(OH)2: This is the chemical formula for magnesium hydroxide. It is an ionic compound composed of the metal magnesium (Mg) and the polyatomic ion hydroxide (OH-). We can classify it as an ionic compound.

15. H3PO4: This is the chemical formula for phosphoric acid. It is a weak acid composed of three hydrogen atoms (H), one phosphorus atom (P), and four oxygen atoms (O). We can classify it as an acid.

16. KCl: This is the chemical formula for potassium chloride. It is an ionic compound composed of the metal potassium (K) and the nonmetal chlorine (Cl). We can classify it as an ionic compound.

17. H2SO4: This is the chemical formula for sulfuric acid. It is a strong acid composed of two hydrogen atoms (H), one sulfur atom (S), and four oxygen atoms (O). We can classify it as an acid.

18. NaOH: This is the chemical formula for sodium hydroxide. It is an ionic compound composed of the metal sodium (Na) and the polyatomic ion hydroxide (OH-). We can classify it as an ionic compound.

19. CaCO3: This is the chemical formula for calcium carbonate. It is an ionic compound composed of the metal calcium (Ca) and the polyatomic ion carbonate (CO3^2-). We can classify it as an ionic compound.

20. MgO: This is the chemical formula for magnesium oxide. It is an ionic compound composed of the metal magnesium (Mg) and the nonmetal oxygen (O). We can classify it as an ionic compound.

21. Fe(OH)3: This is the chemical formula for iron(III) hydroxide. It is an ionic compound composed of the metal iron (Fe) and the polyatomic ion hydroxide (OH-). We can classify it as an ionic compound.

22. CI2: The symbol "CI2" represents chlorine gas. It is a diatomic molecule composed of two chlorine atoms (Cl). We can classify it as a diatomic molecule.

Summary of classifications:

- Nonmetals: N, Si - Metals: Ba - Ionic compounds: KOH, BaSO4, Na2SO4, ZnO, Mg(OH)2, NaCl, KCl, NaOH, CaCO3, MgO, Fe(OH)3 - Covalent compounds: H2O, PH3 - Polyatomic ions: NO3-, CO3^2- - Acids: HCl, H2CO3, H3PO4, H2SO4 - Diatomic molecule: CI2

Please note that this classification is based on the chemical formulas and properties of the substances provided. If there are any errors or additional information needed, please let me know.