Balanced Chemical Equation – Solution
Zn + 2HCl → ZnCl2 + H2
The coefficients show the number of particles (atoms or molecules), and the indices show the number of atoms that make up the molecule. New substances are formed as a result of the rearrangement of the original atoms. As a result of a chemical reaction, atoms of chemical elements do not disappear anywhere and new ones do not appear, their number remains unchanged – this follows from the law of conservation of mass of substances.
Chemical Reaction Information
Zinc + Hydrogen Chloride = Zinc Chloride + Tritium
This is an oxidation-reduction (redox) reaction. Zn is a reducing agent, HCl is an oxidizing agent.
Zn0 – 2 e– → ZnII (oxidation)
2 HI + 2 e– → 2 H0 (reduction)
Reaction Type
Single Displacement (Substitution)
Substances that react are called starting materials or reactants. The substances that form as a result are called reaction products.
Reactants:
Zn
- Names: Zinc, Zinc powder (pyrophoric), Zn.
- Appearance: Grey-to-blue powder.
HCl – Chlorane, Hydrogen chloride
- Other names: Hydrochloric acid, M, Hydronium chloride.
- Appearance: Colorless, transparent liquid, fumes in air if concentrated; Colorless gas.
Products:
ZnCl2 – Zinc chloride
- Other names: Zinc dichloride, Zinc(II) chloride, Butter of zinc
- Appearance: White crystalline solid | hygroscopic; White hygroscopic solid in various forms.
H2
- Other names: Dihydrogen, Hydrogen, H₂.
- Appearance: Odourless colourless compressed gas.
| HCl + Zn + Al → ZnCl2 + AlH |
| HCl + Zn → H2ZnCl2 |
| HCl + Zn + AgCl → H2 + Ag + ZnCl2 |
| HCl + Zn + H2PO3 → H2O + ZnCl2 + PH3 |
| HCl + Zn + AsCl3 → ZnCl2 + AsH3 |
| HCl + Zn + Ag3AsO4 → H2O + Ag + ZnCl2 + As3H3 |
| HCl + Zn → ZnHCl |
| HCl + Zn + As2O3 → H2O + ZnCl2 + AsH3 |
| HCl + Zn → H2 + Cl2Zn |
| HCl + Zn + NaVO3 → H2O + NaCl + ZnCl2 + VCl4 |
| HCl + Zn + Na2MoO4 → H2O + NaCl + ZnCl2 + Mo9O14 |
| HCl + Zn → H2 + ClZn |
| HCl + Zn + Na2S2O3 → H2O + NaCl + H2S + ZnCl2 |
| HCl + Zn + K2MoO4 → H2O + KCl + ZnCl2 + MoCl3 |
| HCl + Zn + V2O5 → H2O + ZnCl2 + VOCl2 |
| HCl + Zn + NaVO3 → H2O + NaCl + ZnCl2 + VCl3 |
| HCl + Zn → ZnCl2H2 |
| HCl + Zn + H3PO3 → H2O + ZnCl2 + H3P |
| HCl + Zn + NaAsO2 → H2O + NaCl + ZnCl2 + AsH3 |
| HCl + Zn + Na2SO3 → H2O + NaCl + H2S + ZnCl2 |
| HCl + Zn + HAsO2 → H2O + ZnCl2 + AsH3 |
| HCl + Zn → H2 + Cl:- + Zn:2+ |
| HCl + SO2 + Zn → H2O + H2S + ZnCl2 |
| HCl + Zn + Na3AsO4 → H2O + NaCl + ZnCl2 + AsH3 |
| HCl + Zn + KNO3 → H2O + KCl + ZnCl2 + NH4Cl |
| HCl + Zn + H2SeO3 → H2O + ZnCl2 + Se |
| HCl + Zn + H3PO4 → H2O + ZnCl2 + PH3 |
| HCl + Zn → H2 + ZnCl3 |
| HCl + Zn + K3AsO3 → H2O + KCl + ZnCl2 + AsH3 |
| HCl + Zn + H3AsO3 → H2O + ZnCl2 + AsH3 |
| HCl + Zn → H2 + ZnCl2 |
| HCl + KMnO4 + Zn → H2O + KCl + MnCl2 + ZnCl2 |
| HCl + Zn + FeCl3 → H2 + FeCl2 + ZnCl2 |
| HCl + Zn + H3PO3 → H2O + ZnCl2 + PH3 |
| HCl + Zn + Ag3AsO4 → H2O + Ag + ZnCl2 + AsH3 |
| HCl + Zn + CrCl3 → H2 + ZnCl2 + CrCl2 |
| HCl + Zn + K3[Cr(OH)6] → H2O + H2 + KCl + ZnCl2 + CrCl2 |
| HCl + Zn + H3AsO4 → H2O + ZnCl2 + AsH3 |
| HCl + HNO3 + Zn → H2O + NO + ZnCl2 |
| HCl + Zn + AsCl3 → ZnCl2 + AsH3 + As |
| HCl + HNO3 + Zn → H2O + NO2 + ZnCl2 |
| HCl + Zn + K2Cr2O7 → H2O + KCl + Cr2O3 + ZnCl2 |
| HCl + Zn → H2 + Zn2Cl |
| HCl + Zn + K2Cr2O7 → H2O + KCl + CrCl3 + ZnCl2 |
| HCl + Zn + Na2WO4 → H2O + NaCl + ZnCl2 + W5O14 |
| HCl + Zn + C6H5NO2 → H2O + ZnCl2 + C6H5NH2 |
| HCl + Zn + H2SO3 → H2O + S + ZnCl(OH)2 |
| HCl + Zn → H2 + ZnCl12 |
| HCl + Zn + VOCl2 → H2O + ZnCl2 + VCl2 |
