From water, H2 at cathode and O2 at anode:
2H2O ----> 2H2 + O2
The word equation for the preparation of hydrogen gas is: metal + acid → salt + hydrogen gas. For example, when hydrochloric acid reacts with zinc, it produces zinc chloride salt and hydrogen gas.
There are a number of ways of preparing Hydrogen. One is the electrolysis of water. Another would be to add a metal to an acid. As an example Magnesium and Hydrochloric Acid would produce hydrogen. Mg + 2HCl -----> MgCl2 + H2
The word equation for hydrogen chloride is "hydrogen + chlorine = hydrogen chloride".
The word equation for hydrogen chloride is: hydrogen + chlorine → hydrogen chloride.
Hydrogen + fluorine ---> hydrogen fluoride
hydrogen iode because of its 2hydrogen atoms
The chemical equation for the laboratory preparation of ammonia is: N2(g) + 3H2(g) → 2NH3(g)
The balanced chemical equation for the reaction of hydrogen with fluorine to produce hydrogen fluoride is: 2H2 + F2 → 4HF
Calcium is not used in the lab preparation of hydrogen because it reacts with water to form calcium hydroxide and hydrogen gas, making it an inefficient method for producing pure hydrogen. Other methods such as using metals like zinc or aluminum are preferred for lab preparation of hydrogen as they do not form unwanted byproducts.
The elements chlorine and hydrogen react with each another to form the compound hydrogen chloride.
The word equation for the formation of hydrogen gas is "Hydrogen gas is produced by the reaction of a metal with an acid."
The balanced equation for the production of hydrogen chloride from hydrogen and chlorine is: H2 + Cl2 -> 2HCl. This equation shows that one molecule of hydrogen reacts with one molecule of chlorine to produce two molecules of hydrogen chloride.