Avak Avakyan

Preparation of nitrogen dioxide — Avak Avakyan’s video

Avak Avakyan — The arsenide minerals and ecology

Diamminesilver sulphate + ascorbic acid (chemical reaction)

About Beirut explosion: this is a trinitrotoluene!

Avak Avakyan — Prayer about Putin (with piano)

Test for hydrogen sulphide: CuSO4 + H2S

Synthesis: Fe + S = FeS

Avak Avakyan — Picket for Telegram

Putin — terrorist

Putin terrorist

Marble and sulphuric acid

Avak Avakyan — Prayer about Putin