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1. Row A correctly describes diffusion as particles moving from an area of high concentration to low concentration and states that ethane diffuses more quickly than methane. 2. Chromatography separates colorless mixtures by treating the chromatogram with a chemical called a locating agent. 3. Statement C is incorrect - each nitrogen atom in hydrazine shares two of its electrons with hydrogen atoms, not one with another nitrogen. [END SUMMARY]

Author

Ern Qi

Language

EN