Science. Explain why iron sulphide is a compound and not just a mixture of the two elements iron and sulphur. Explain why iron sulphide has different properties to a mixture of iron and sulphur and also describe and explain tests that can distinguish between iron sulphide and a mixture of iron and sulphur.
General information. Dietitians are the only qualified health professionals that assess, diagnose and treat dietary and nutritional problems at an individual and wider public-health level. They work with both healthy and sick people.
A Registered Dietitian Nutritionist or RDN (the spelling âDietitianâ is preferred over âDieticianâ in the dietetics world, and the term Registered Dietitian has been updated to Registered Dietitian Nutritionist) is a nutritionist accredited by the Academy of Nutrition and Dietetics (formerly the American Dietetic Association or ADA).