Make up the reaction equations: a) HCL-H2-HCL b) H2O-H2-H2O
| April 24, 2021 | education
a).
1. The reaction of hydrochloric acid with metals with the formation of salt and the evolution of hydrogen:
2HCl + 2Na = 2NaCl + H2.
2HCl + Mg = MgCl2 + H2.
2. Combustion of hydrogen in a chlorine atmosphere:
H2 + Cl2 = 2HCl.
b).
1. Water decomposes at high temperatures over 1000 ° C.
2H2O = 2H2 + O2.
2. Combustion of hydrogen in oxygen is an exothermic reaction:
2H2 + O2 = 2H2O.
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