chemistry c2 0.0 / 5 ? ChemistryChemical patterns and reactivity seriesGCSEAQA Created by: l mulaCreated on: 17-02-17 19:16 how can you tell that the the compound H2O has covalent bonds? it is made of non metals 1 of 10 explain what happens to the atoms of the elements when lithium reacts with fluorine? litium atoms lose an electron to form a lithium ion that has a positive charge 2 of 10 why is the formula of sodium chloride NaCl but magnesium choride is MgCl2? sodium ions have a single positive charge -they are Na+ and magnesium ions have a double postive charge 3 of 10 how are the atoms arranged in a metal? in a giant structure closely packed together in layers with a regular pattern. 4 of 10 what is a compound two or more elements 5 of 10 what is biomass? biological material from living or recently living organisms 6 of 10 what is nanoscience? the study of very tiny particples or structures between 1 and 100 nanometres in size minus where 1 nanometre=1.0 x 10-9 metres. 7 of 10 what is a catalyst A substance that speeds up a chemical reaction. 8 of 10 what is protease? an enzyme that breaks down proteins 9 of 10 what is a mitrochondria? the site of aerobic celluar repiration in a cell 10 of 10
Comments
No comments have yet been made