Question

Пп Розставити коефіцієнти у рівняннях та вказати тип хімічних реакцій : Расставить коэффициенты в уравнениях и указать тип химических реакций: Ag + S → Ag2S NaBr + Cl2 → NaCl + Br2 SO2 + O2 → SO3 Al + O2 → Al2O3 N2 + H2 → NH3 CO + O2 → CO2 FeO + Al2O3 → FeAl2O4 Ca + P → Ca3P2 H2SO4 + K → K2SO4 + H2 Si + Fe2O3 → Fe + SiO2 H2 + I2 → HI Аl2O3 + P2O5 → AlPO4

Answer 1

Ответ:

Объяснение:

Ag + S → Ag2S (коэффициенты уже расставлены, это синтез)

NaBr + Cl2 → 2NaCl + Br2 (коэффициенты указаны, это двойная замена)

SO2 + O2 → 2SO3 (коэффициенты указаны, это синтез)

4Al + 3O2 → 2Al2O3 (коэффициенты расставлены, это синтез)

N2 + 3H2 → 2NH3 (коэффициенты уже расставлены, это синтез)

2CO + O2 → 2CO2 (коэффициенты расставлены, это окисление)

2FeO + Al2O3 → Al2O3Fe2O3 (коэффициенты расставлены, это двойная замена)

3Ca + 2P → Ca3P2 (коэффициенты уже расставлены, это синтез)

H2SO4 + 2K → K2SO4 + 2H2O (коэффициенты расставлены, это двойная замена)

Si + 2Fe2O3 → 4Fe + SiO2 (коэффициенты расставлены, это восстановление)

H2 + I2 → 2HI (коэффициенты указаны, это синтез)

2Al2O3 + P4O10 → 4AlPO4 (коэффициенты расставлены, это двойная замена)

Answer 2

Balancing Chemical Equations and Identifying Reaction Types

Let's go through each equation and balance the chemical equations while also identifying the type of chemical reaction.

1. Ag + S → Ag2S

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have one atom of silver (Ag) on the left side and two atoms of silver (Ag) on the right side. To balance it, we can put a coefficient of 2 in front of Ag on the left side:

2Ag + S → Ag2S

This equation represents a combination reaction, where two elements combine to form a compound.

2. NaBr + Cl2 → NaCl + Br2

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have one atom of sodium (Na) on the left side and one atom of sodium (Na) on the right side. To balance it, we can put a coefficient of 2 in front of NaCl on the right side:

NaBr + Cl2 → 2NaCl + Br2

This equation represents a displacement reaction, where one element displaces another element in a compound.

3. SO2 + O2 → SO3

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have two atoms of sulfur (S) on the left side and one atom of sulfur (S) on the right side. To balance it, we can put a coefficient of 2 in front of SO3 on the right side:

SO2 + O2 → 2SO3

This equation represents a combination reaction, where two elements combine to form a compound.

4. Al + O2 → Al2O3

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have two atoms of aluminum (Al) on the left side and two atoms of aluminum (Al) on the right side. The equation is already balanced.

Al + O2 → Al2O3

This equation represents a combination reaction, where two elements combine to form a compound.

5. N2 + H2 → NH3

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have two atoms of nitrogen (N) on the left side and one atom of nitrogen (N) on the right side. To balance it, we can put a coefficient of 2 in front of NH3 on the right side:

N2 + 3H2 → 2NH3

This equation represents a combination reaction, where two elements combine to form a compound.

6. CO + O2 → CO2

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have one atom of carbon (C) on the left side and one atom of carbon (C) on the right side. The equation is already balanced.

CO + O2 → CO2

This equation represents a combination reaction, where two elements combine to form a compound.

7. FeO + Al2O3 → FeAl2O4

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have two atoms of iron (Fe) on the left side and two atoms of iron (Fe) on the right side. The equation is already balanced.

FeO + Al2O3 → FeAl2O4

This equation represents a combination reaction, where two elements combine to form a compound.

8. Ca + P → Ca3P2

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have three atoms of calcium (Ca) on the right side and only one atom of calcium (Ca) on the left side. To balance it, we can put a coefficient of 3 in front of Ca on the left side:

3Ca + P → Ca3P2

This equation represents a combination reaction, where two elements combine to form a compound.

9. H2SO4 + 2K → K2SO4 + 2H2

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have two atoms of hydrogen (H) on the left side and four atoms of hydrogen (H) on the right side. To balance it, we can put a coefficient of 2 in front of H2SO4 on the left side:

H2SO4 + 2K → K2SO4 + 2H2

This equation represents a displacement reaction, where one element displaces another element in a compound.

10. Si + Fe2O3 → Fe + SiO2

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have one atom of iron (Fe) on the left side and one atom of iron (Fe) on the right side. The equation is already balanced.

Si + Fe2O3 → Fe + SiO2

This equation represents a displacement reaction, where one element displaces another element in a compound.

11. H2 + I2 → 2HI

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have two atoms of hydrogen (H) on the left side and two atoms of hydrogen (H) on the right side. The equation is already balanced.

H2 + I2 → 2HI

This equation represents a combination reaction, where two elements combine to form a compound.

12. Al2O3 + P2O5 → AlPO4

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, we have two atoms of aluminum (Al) on the left side and one atom of aluminum (Al) on the right side. To balance it, we can put a coefficient of 2 in front of AlPO4 on the right side:

Al2O3 + P2O5 → 2AlPO4

This equation represents a combination reaction, where two elements combine to form a compound.

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