The mixture rule states that any mixture of a listed hazardous waste and a non-hazardous waste remains regulated as a hazardous waste. Mixtures of characteristic wastes and non-hazardous waste are regulated as hazardous waste if the resultant mixture continues to exhibit the characteristic.
1 Wash the cannula in soapy water and rinse it with a solution of 10 parts water and one part vinegar. 2  Rinse thoroughly with hot water and hang to dry.  This connects the nasal cannula to the oxygen concentrator. It doesnât need to be cleaned, but plan to replace it every 6 to 12 months advises the ATS.
For example, in the following equation you cannot change oxygen's subscript in water from one to two, as in: H 2 + O 2 2 O 2. True, this balances the equation, but you have changed the substances in it. H 2 O 2 is a completely different substance from H 2 O. 2.. If there is an element that is not bonded to any other atom or is diatomic (H2, N2, O2, F2, Cl2, Br2, I2) balance it last. For example, in the equation: CO 2 + H 2 6 H 12 O 6 + O 2, oxygen is diatomic(O 2). When balancing this equation, balance oxygen last.