Question

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Answer 1

Respuesta:

• Zn + HCl --> ZnCl2 + H2

1 = Zn = 1

1 = H = 2

1 = Cl = 2

RESPUESTA: Zn + 2HCl --> ZnCl2 + H2

1 = Zn = 1

2 = H = 2

2 = Cl = 2

• HCl + Ca (OH)2 --> CaCl2 + H2O

2 = H = 2

1 = Cl = 2

1 = Ca = 1

2 = O = 1

RESPUESTA: 2HCl + Ca (OH)2 --> CaCl2 + 2H2O

4 = H = 4

2 = Cl = 2

1 = Ca = 1

2 = O = 2

• Al2O3 + H2SO4 --> Al2 (SO4)3 + H2O

2 = Al = 2

7 = O = 13

2 = H = 2

1 = S = 3

RESPUESTA: Al2O3 + 3H2SO4 --> Al2 (SO4)3 + 3H2O

2 = Al = 2

15 = O = 15

6 = H = 6

3 = S = 3

• P + O2 --> P2O3

1 = P = 2

2 = O = 3

RESPUESTA: 4P + 3O2 --> 2P2O3

4 = P = 4

6 = O = 6

• Na + H2O --> NaOH + H2

1 = Na = 1

2 = H = 3

1 = O = 1

RESPUESTA: 2Na + 2H2O --> 2NaOH + H2

2 = Na = 2

4 = H = 4

2 = O = 2

• Zn + HCl --> ZnCl2 + H2

1 = Zn = 1

1 = H = 2

1 = Cl = 2

RESPUESTA: Zn + 2HCl --> ZnCl2 + H2

1 = Zn = 1

2 = H = 2

2 = Cl = 2

• HCl + Ca (OH)2 --> CaCl2 + H2O

3 = H = 2

1 = Cl =2

1 = Ca = 1

2 = O = 1

RESPUESTA: 2HCl + Ca (OH)2 --> CaCl2 + 2H2O

4 = H = 4

2 = Cl =2

1 = Ca = 1

2 = O = 2

• Al2O3 + H2SO4 --> Al2 (SO4)3 + H2O

2 = Al = 2

7 = O = 13

2 = H = 2

1 = S = 3

RESPUESTA: Al2O3 + 3H2SO4 --> Al2 (SO4)3 + 3H2O

2 = Al = 2

15 = O = 15

6 = H = 6

3 = S = 3