GCSE Chemistry OCR 21st Century, C1- Air Quality 0.0 / 5 ? ChemistryThe pollutants of combustionChemical patterns and reactivity seriesGCSEOCR Created by: ella.harder5Created on: 17-04-17 15:05 How did carbon dioxide go from a very high percentage in the early atmosphere, to very little in todays atmosphere? It dissolved in oceans, and later made sedimentary rocks. 1 of 5 What substance is formed during the polymerisation of ethane? Polythene 2 of 5 What is ethanol produced from? Microbial fermentation of sugar 3 of 5 Octane is a... Hydrocarbon 4 of 5 What substance weathers limestone, damages trees and makes rivers and lakes acidic? Acid rain 5 of 5
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