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write any two equations to illustrate that hydrogen gas is a reducing agent​

Sagot :

Hydrogen as reducing agent: hydrogen donates its electrons to areduce other substances.
Examples:

•hydrogen reduces acetylene(OS= -1)to ethane(OS= -3).

C2H2+2H2--->C2H6.

•hydrogen reduces bromine(OS=0)to hydrobromic acid(OS=-1).

H2+Br2---->2HBr.

•hydrogen reduces oxygen(OS= 0 )To water (OS= -2).

2H2+O2---->2H2O.
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