Make the reaction equation: Al -> Al2O3 -> Al2 (SO4) 3 -> Al (OH) 3 -> AlCl3 -> Al.

univerkov | September 24, 2021 | education

1) 4 Al + 3 O2 = 2 Al2O3; Al2O3 – Al oxide;

2) Al2O3 + 3 H2SO4 = Al2 (SO4) 3 + 3 H2O; Al2 (SO4) 3 – Al sulfate;

3) Al2 (SO4) 3 + 6 KOH = 2 Al (OH) 3 + 3 K2SO4; Al (OH) 3 – Al hydroxide;

4) AL (OH) 3 + 3 HCl = ALCl3 + 3 H2O; ALCl3 – Al chloride;

5) AlCl3 + 3 K = Al + 3 KCl – heating without air access.

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