C1 chemistry OCR 21st century 4.5 / 5 based on 7 ratings ? ChemistryC1GCSEOCR Created by: ElnicholsonCreated on: 04-11-15 16:08 63921105874 Across 1. Sulfur dioxide can cause what? (4, 4) 4. When coal burns, you mostly get what? (6, 7) 5. What percentage of argon makes up the atmosphere? (3) 6. What percentage of nitrogen makes up the atmosphere? (7, 5) 7. The five pollutants in the air are carbon dioxide, carbon monoxide, sulphur dioxide, nitrogen oxide and what? (12) 8. Carbon monoxide is produced if there isn't enough _____ when fuels burn. (6) Down 2. Whats the name of the fuel containing carbon and hydrogen? (11) 3. The atmosphere was formed by carbon dioxide, water vapour and nitrogen being released by what? (9) 9. What percentage of oxygen makes up the atmosphere? (6, 3) 10. In reactions, the mass of the reactants is equal to the mass of the? (8)
Chemistry C7 Notes Completed + Highlighted (Excess) - OCR 21st Century, 2011 Specification 5.0 / 5 based on 1 rating Teacher recommended
Comments
No comments have yet been made