"Reactiviteit"@nl . . . . . . "r\u00E9activit\u00E9"@fr . . . "601"^^ . . . . . . "r\u00E9activit\u00E9"@fr . . . . . . . . . . "141537528"^^ . . "813356"^^ . . . . "R\u00E9activit\u00E9"@fr . "Reaktywno\u015B\u0107"@pl . .