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Chemistry Intro

year 9 and 10 science VicCurric

TermDefinition
acid a substance that produces hydrogen ions when dissolved in water
alkaline describes the solution made when a base is dissolved
anion a negatively charged ion
base a substance that produces hydroxide ions when dissolved in water
catalyst a chemical that helps to speed up a chemical reaction but is not used up in the reaction
cation a positively charged ion
caustic the term used to describe corrosive bases
chemical potential energy energy stored in the molecules
combination reaction occurs when two reactants combine to form a single product
combustion a chemical reaction in which a substance burns in oxygen to give light and heat
corrosion a chemical reaction in which a metal reacts with oxygen to produce a metal oxide but does NOT produce significant amounts of heat and light
decomposition reaction a chemical reaction in which one reactant breaks apart into two or more products
endothermic a physical or chemical process that absorbs energy
enzyme a biological catalyst
exothermic a physical or chemical process that produces energy in the form of heat or light
hydrocarbons all substances made up of just hydrogen and carbon - commonly used as fuels
incomplete combustion combustion that occurs in a limited supply of oxygen
insoluble does not dissolve
ion an atom that has gained or lost electrons to become electrically charged
ionic compound a substance made of positive and negative ions
neutral neither acidic or basic
precipitate the insoluble product of a precipitation reaction
precipitation reaction when two clear solutions react to produce an insoluble solid
product a substance produced by a chemical reaction
reactant the initial substance of a chemical reaction
respiration an exothermic chemical reaction between sugar and oxygen inside cells to produce carbon dioxide, water and energy
salt an ionic compound formed by the reaction of an acid with another element or compound
soluble able to dissolve
Created by: LynneN