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To investigate the reactions of a typical acid (dilute hydrochloric acid) with metals, metal oxides, carbonates and bases place a small piece of magnesium ribbon in a test tube and add about 2ml of dilute hcl stopper the test tube and allow the gas to accumulate remove stopper and test for the. Lauric acid is a saturated medium-chain fatty acid with a 12-carbon backbonelauric acid is found naturally in various plant and animal fats and oils, and is a major component of coconut oil and palm kernel oil. Biochemistry test – practice questions (answers on last page) 1 the atomic # for fe (iron) is 26 how many protons in fe2+ amino acid 18.
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