chemistry 0.0 / 5 ? ChemistryallGCSEAQA Created by: staffyloverCreated on: 18-05-16 10:50 What is the overall charge on an atom 0 1 of 15 Here are the group 0 elements. What are they commonly known as? noble gases 2 of 15 Look at the group 0 elements. The electron arrangement of argon is 2,8, what? 8 3 of 15 When elements react, what are given away, taken or shared The right answer is "electrons" 4 of 15 What is the name of the main compound found in iron ore? The right answer is "iron oxide 5 of 15 Copper can be extracted by allowing it to accumulate in plants that are then burned to produce copper-rich ash. What is this called? The right answer is "phytomining" or "phytoextraction 6 of 15 Which process is usually least expensive, recycling metals or extracting them? The right answer is recycling 7 of 15 What is the main useful property of cast iron? The right answer is "hardness" or "softness" or "flexibility" or "light weight" or "corrosion resistance" 8 of 15 True or false? Low-carbon steel is more easily shaped than high-carbon steel. The right answer is TRUE 9 of 15 Two elements are found together in a substance. They are not chemically combined. Is this substance an element, a mixture or a compound? The right answer is mixture 10 of 15 A container holds an element and a compound that are not chemically combined. Is this an element, a mixture or a compound? The right answer is mixture 11 of 15 What method is used to separate the different parts of crude oil? The right answer is "distillation" or "fractional distillation 12 of 15 What is the name of the gas that is formed largely by burning fuels, contributing to global warming? The right answer is "carbon dioxide" co2 13 of 15 What does ethene have that polyethene does not The right answer is "double bonds" or "double covalent bonds" or "double carbon bond" or "carbon double bond" or "double carbon-carbon bond" 14 of 15 What is needed to speed up the reaction of ethene and water to make ethanol? The right answer is "catalyst" or "yeast" 15 of 15
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