Chemistry 0.0 / 5 ? ChemistryFunctional groups: Alkanes, alcohols, carboxylic acids and estersGCSEAQA Created by: LilaRose123Created on: 25-03-19 17:06 What is a compound? A compound is a substance that contains two or more elements that are chemically combined. 1 of 33 What is an ion? An ion is a charged particle formed when an atom,or a group of atoms gains or loses electrons. 2 of 33 What is an atom? The smallest part of an element that can exist. 3 of 33 What is a chemical reaction? A change where atoms are rearranged or have joined together to make a new substance. 4 of 33 What is mass? The amount of matter an object has. 5 of 33 What is a precipitation reaction? A reaction in which a insoluble solid is formed when specific solutions are mixed. 6 of 33 What does soluble mean? Able to dissolve in a solvent. 7 of 33 What does a word equation represent? It represents a chemical reaction. 8 of 33 What is the law of conversation mass? That no atoms are lost during a chemical reaction and the total mass is equal. 9 of 33 What are the three states of matter? Solid,Liquid and Gas 10 of 33 What does sublime mean? Able to change from a solid to a gas and gas to solid without turning into a liquid. 11 of 33 What is an ionic compound? A giant structure of atoms. 12 of 33 What do metal atoms lose? They lose electrons. 13 of 33 What are ionic lattices held together by? They are held together by electrostatic forces. 14 of 33 What is an electron? An subatomic particle with a negative charge. 15 of 33 What is a covalent bond? It is a bond formed when two atoms share electrons. 16 of 33 What is an element? A element is a substance made of only one atom. 17 of 33 What are weak intermolecular forces? They are forces which have weak attractive forces between molecules. 18 of 33 What is a non-metal? It is a poor conductor of electricity and heat. 19 of 33 What do dot and cross diagrams show? They show how electrons are shared in covalent bonds. 20 of 33 What does small molecules have? A strong covalent bond. 21 of 33 What do large molecules have? A weak covalent bond. 22 of 33 What are boiling and melting points an example of? They are an example of changing state. 23 of 33 What does a substance that can conduct electricity have? They have charged particles which move around. 24 of 33 What do metals consist of? They have a giant structure of atoms. 25 of 33 What is an alloy a mixture of? It is a mixture of two or more alloys. 26 of 33 What is a conductor? It is a material which allows charge to flow easily through it. 27 of 33 Name 3 greenhouse gases. Water vapour,methane and carbon dioxide. 28 of 33 Name one thing that greenhouse gases do? They absorb heat radiation. 29 of 33 What do farming cattle release a lot of? Methane (cows fart quite a lot) 30 of 33 What do burning fossil fuels release a lot of? Carbon dioxide 31 of 33 What does acid rain consist of? Sulphur dioxide and nitrogen. 32 of 33 What is a carbon footprint? It is a measure of how much carbon is used in certain activities. 33 of 33
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