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NUCLEAR EQUATIONS WORKSHEET ANSWERS- insect aerosol company definition chemistry worksheet answers nuclear decay ,NUCLEAR EQUATIONS WORKSHEET ANSWERS 1. Write a nuclear equation for the alpha decay of 231Pa 91. 231Pa 91 4He 2 + 227Ac 89 2. Write a nuclear equation for the beta decay of 223Fr 87. 223Fr 87 oe-1 + 223Ra 88 3. Write a nuclear equation for the alpha and beta decay of 149Sm 62. 149Sm 62 4He 2 + oe-1 + 145Pm 61 4.The chemistry of cosmetics - CuriousWhat is a cosmetic? In Australia, a cosmetic is defined under the Industrial Chemical (Notification and Assessment) Act 1989 as ‘a substance or preparation intended for placement in contact with any external part of the human body' (this includes the mouth and teeth). We use cosmetics to cleanse, perfume, protect and change the appearance of our bodies or to alter its odours.



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