science 0.0 / 5 ? ScienceHydrocarbonsGCSEAQA Created by: shuthnanceCreated on: 10-10-19 09:07 4231 Across 1. diffusion going against the concentration gradient (6, 9) Down 2. moment of water through a semi permeable membrane (7) 3. bonding between a metal and a non metal (5) 4. naturally occurring polymer made from spiders (4)
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