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The energy diagram of hydrogen chloride shows the potential energy of the system as a function of the reaction progress. It typically consists of an initial reactant energy level, a transition state energy level, and a final product energy level. The diagram illustrates the energy changes that occur during the formation of hydrogen chloride from its constituent elements.
Zinc chloride and hydrogen gas are produced when zinc reacts with hydrogen chloride.
Hydrogen chloride gas is colorless.
When all three isotopes of hydrogen (protium, deuterium, and tritium) react with chlorine in sunlight, they form hydrogen chloride (HCl). The reaction involves the hydrogen atoms exchanging electrons with the chlorine atoms to form the covalent bond in hydrogen chloride. The reaction is more efficient in sunlight as it provides the energy needed to break the bonds and initiate the chemical reaction.
The chemical formula for zinc chloride is ZnCl2, and for hydrogen gas, it is H2.
To test for chloride ions in hydrogen chloride, you can add silver nitrate solution. A white precipitate of silver chloride will form if chloride ions are present in the hydrogen chloride solution.