Arectangular steel block of diamension of 10cm×5cm×2cm jas a mass 550g.calculate the density of the block
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Ответ:
1. Sodium Benzoate
Explanation: An anti-oxidant is a substance that can help prevent or stop the damage done by free radicals. Examples include; Sulphur Dioxide, Sulphite Salts, Citric Acid, e.t.c
Sodium benzoate is a pure preservative.