Răspuns:
1. a) the name of the gas is hydrogen
b) Separate the gas using a special evacuation tube and trap it in an upside-down container because it is lighter than air. Take a match, light it up and put it in the same container. If the match burns faster or the flame is bigger you have successfully obtained hydrogen, because it is flammable.
2. a) Hydrochloric hydrogen
b) Magnesium hydrogen
c) Copper chloride (II)
d) carbonate
