hibiscus (pH), yes, No, Charcoal (adsorption), yes, No, Betadine (iodine), yes, No, Bath bomb (bicarbonate & citric acid), yes, No, Invisible ink (bicarbonate or citric acid), yes, No, Burn money without burning it (ethanol), yes, No, Popping the balloon (citric acid), yes, no, Reflame, yes, no

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