9013172
Description
Flashcards by sophie loiselle, updated more than 1 year ago
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Created by sophie loiselle
over 7 years ago
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| Question | Answer |
| atom | the smallest whole part of all matter |
| element | a type of matter made up of only one type of atom |
| molecule | a type of matter made of two or more atoms chemically bonded together |
| mixture | a material made of different elements and/or compounds where there is no fixed ratio, and can be separated by physical means |
| chemical symbol | a shorthand way to represent an element and molecule |
| compound | a type of matter made of two or more different types o atoms chemically bonded together |
| physical change | a type of change in which the form of matter changes its physical state as a result of energy changes |
| chemical change | a type of change where one or more substances are chemically altered into one or more new and different substances |
| chemical reaction | the process which brings about a chemical change |
| acid | a substance with particular chemical properties including turning litmus red, neutralizing alkalis, often corrosive and sour tasting |
| metal | a type of matter which is typically a solid, shiny, malleable and ductile. with good electrical and thermal conductivity |
| alloy | a general term for a mixture of metals made by combining two or more metallic elements, which results in different physical properties |
| lustre | the manner in which a newly exposed metal reflects light |
| malleable | the ability of a metal to be beaten to form shapes without breaking |
| ductile | the ability of a metal to be drawn out to form a wire |
| conductivity | the ability of a substance to allow electricity or heat to travel through it |
| extraction | the process by which metals are removed from mineral ores |
| electrolysis | the process by which an electric current is passed through a substance to effect a chemical change |
| decomposition | a type of chemical reaction where a substance is broken down into two or more simpler substances |
| synthesis | a type of chemical reaction where two or more substances chemically combine to form a new substance |
| precipitation | a type of chemical reaction where two soluble salt solids are combined to form an insoluble solid |
| neutralization | a type of chemical reaction where an acid and a base interact to form a salt and water |
| biopolymer | the general term for a very large molecule made by living organisms |
| petroleum | also known as crude oil, an oily mixture of hydrocarbons that can be extracted from layers of rock and used to produce fuel and polymers |
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