Question

Разбить уравнения реакций на 4 группы. Реакции обмена записать в ионном виде. C+O2 KCl MgCl2+AgNO3 Ca+O2 NaCl Zn+HCl Mg+HCl Kl+AgNO3 Na+O2 HgO Cu(OH)2+HCl Mg+O2 NaOH+HNO3 Помогите плиззз

Answer 1

Реакции соединения:
C + O2; Ca + O2; Na + O2; Mg + O2

Реакции разложения:
KCl → ...; NaCl → ...; HgO → ...

Реакции замещения:
Zn + HCl; Mg + HCl

Реакции обмена:
MgCl2 + AgNO3; KI + AgNO3; Cu(OH)2 + HCl; NaOH + HNO3

Реакции обмена в ионном виде:
1) MgCl2 + 2AgNO3 → Mg(NO3)2 + 2AgCl↓
Mg(2+) + 2Cl(-) + 2Ag(+) + 2NO3(-) → Mg(2+) + 2NO3(-) + 2AgCl
2Cl(-) + 2Ag(+) → 2AgCl
Cl(-) + Ag(+) → AgCl
2) KI + AgNO3 → KNO3 + AgI↓
K(+) + I(-) + Ag(+) + NO3(-) → K(+) + NO3(-) + AgI
I(-) + Ag(+) → AgI
3) Cu(OH)2 + 2HCl → CuCl2 + 2H2O
Cu(OH)2 + 2H(+) + 2Cl(-) → Cu(2+) + 2Cl(-) + 2H2O
Cu(OH)2 + 2H(+) → Cu(2+) + 2H2O
4) NaOH + HNO3 → NaNO3 + H2O
Na(+) + OH(-) + H(+) + NO3(-) → Na(+) + NO3(-) + H2O
OH(-) + H(+) → H2O

Answer 2

Grouping Equations and Writing Ionic Equations

To group the given equations into four categories and write them in ionic form, we can categorize them based on the type of reaction they represent. The four types of reactions we will consider are:

1. Combination or Synthesis Reactions: These reactions involve the combination of two or more substances to form a single product. 2. Decomposition Reactions: These reactions involve the breakdown of a compound into two or more simpler substances. 3. Single Replacement or Displacement Reactions: These reactions involve the replacement of one element in a compound by another element. 4. Double Replacement or Displacement Reactions: These reactions involve the exchange of ions between two compounds.

Let's go through each equation and categorize them accordingly:

Combination or Synthesis Reactions:

1. C + O2 → CO2

Decomposition Reactions:

2. KCl → K + Cl2 3. MgCl2 → Mg + Cl2 4. AgNO3 → Ag + NO2 + O2 5. Ca + O2 → CaO 6. NaCl → Na + Cl2 7. Zn + HCl → ZnCl2 + H2 8. Mg + HCl → MgCl2 + H2 9. Kl + AgNO3 → KlNO3 + Ag 10. Na + O2 → Na2O 11. HgO → Hg + O2 12. Cu(OH)2 + HCl → CuCl2 + H2O

Single Replacement or Displacement Reactions:

None of the given equations fall under this category.

Double Replacement or Displacement Reactions:

13. Mg + O2 → MgO 14. NaOH + HNO3 → NaNO3 + H2O

Now, let's write the equations in ionic form:

Combination or Synthesis Reactions:

1. C + O2 → CO2 - Cation: None - Anion: None

Decomposition Reactions:

2. KCl → K + Cl2 - Cation: K+ - Anion: Cl^-

3. MgCl2 → Mg + Cl2 - Cation: Mg2+ - Anion: Cl^-

4. AgNO3 → Ag + NO2 + O2 - Cation: Ag+ - Anion: NO3^-

5. Ca + O2 → CaO - Cation: Ca2+ - Anion: O2-

6. NaCl → Na + Cl2 - Cation: Na+ - Anion: Cl^-

7. Zn + HCl → ZnCl2 + H2 - Cation: Zn2+ - Anion: Cl^-

8. Mg + HCl → MgCl2 + H2 - Cation: Mg2+ - Anion: Cl^-

9. Kl + AgNO3 → KlNO3 + Ag - Cation: Kl+ - Anion: AgNO3^-

10. Na + O2 → Na2O - Cation: Na+ - Anion: O2-

11. HgO → Hg + O2 - Cation: Hg2+ - Anion: O2-

12. Cu(OH)2 + HCl → CuCl2 + H2O - Cation: Cu2+ - Anion: Cl^-

Single Replacement or Displacement Reactions:

None of the given equations fall under this category.

Double Replacement or Displacement Reactions:

13. Mg + O2 → MgO - Cation: Mg2+ - Anion: O2-

14. NaOH + HNO3 → NaNO3 + H2O - Cation: Na+ - Anion: OH^-, NO3^-

Please note that the ionic equations provided above are simplified representations of the reactions and may not include all possible ions or states of matter.