OCR 21st Century Chemistry core & additional - Flashcards in GCSE Chemistry

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Created by: Kiesha07
Created on: 25-04-14 11:42




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Across

1. What type of bonding joins the atoms in a molecular compound? (8)
5. Cross linking makes polymers ... (6)
6. The surface area to volume ratio in nanoparticles is... (eg. small, very small, large or very large) (5)
9. What forms when sulfur dioxide reacts with water & oxygen? (2words without a space)) (8)

Down

2. What is another word for Best Estimate? (4)
3. common salt is called (2 words without a space) (6, 8)
4. Which gas varies with weather changes? (5, 6)
7. to make a polymer softer & more flexible you can add a ... (11)
8. Which is the most abundant gas in dry air? (8)
10. Nanoparticles are measured in... (10)

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