Chapter 1 Matter and Change

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Mr R's Summer Chemsitry

chemistry

the study of the composition, structure, and properties of matter and the changes it undergoes

chemical

a substance that has a definite compostion

mass

is the measure of the amount of matter

matter

anything that takes up space and has mass

atom

the smallest unit of an element that retains the properties of the element

element

a pure substance that is made up only one kind of atom

compound

a substance that is made from the atoms of two or more elements tht are chemically bonded

Extensive properties

properties that depend on the amount of matter that is present

intensive properties

properties that do not depend on the amount of matter

physical change

a change in a substance that does not involve a change in the identity of the substance

change of state

a physical change of a substance from one state to another

solid

matter that has a definite shape and volume

liquid

matter that does not have a definite shape but does have a definite volume

gas

matter that has no define shape or volume

plasma

matter at a high temperature in which the atoms have lost their electrons

chemical property

relates to a substance's ability to undergo changes that transform it into two or more new substances

reactants

substances that react in a chemical reaction on the left of the -->

products

substances that are formed in a chemical reaction on the right side -->

mixture

a blend of two or more kings of matter, each of which retains its own identity and properties

homogenous

mixtures that are uniform in composition

heterogenous

mixtures that are not uniform in composition

groups

vertical columns in the periodic table

families

vertical coumns in the periodic table

periods

horizaontal rows in the periodic table

metal

an element that is a good conductor of heat and electricity

non-metal

an element that is not a good conductor of heat and electricity

metalloid

an element that has characteristics of both a metal and a non-metal

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