Ideas from Chapters 17 and

29 Consider the reaction of sodium oxalate (Na2C204) and potassium permanganate (KMn04) in acidic solution. 

In an oxidation-reduction titration, the KMn04 from the buret reacts with Na2C204. 

Magnesium metal reacts vigorously with hydrochloric acid. 

32 The iceman known as Otzi was discovered in a high mountain pass on the Austrian-Italian border. Samples of his hair and bones had carbon-14 activity that was 50% of that present in new hair or bone. Carbon-14 undergoes beta decay and has a half-life of 5730 y. (16.2, 16.4) 

Isotope % Natural Abundance Atomic Mass Half-Life (radioactive) Radiation 

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Chapter 16, Nuclear Chemistry, looks at the type of radioactive particles that are emitted from the nuclei of radioactive atoms. Equations are written and balanced for both naturally occurring radioactivity and artificially produced radioactivity. The half-lives of radioisotopes are discussed, and the amount of time for a sample to decay is calculated. Radioisotopes important in the field of nuclear medicine are described. Combining Ideas from Chapters 15 and 16 follows as an interchapter problem set. 

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