Chemistry Basics
...it undergoes
Chemical-any substance that has a definite composition
Atom - smallest unit of an element that maintains properties of that element
Change of state-physical change of a substance from one state to another
Chemical change-a change in which one or more substances are converted into different substances
Chemical property-relates to a substance ability to undergo changes that transform it into different substances
Chemical reaction-a change in which one or more substances are converted into different substances
Compound- substance that is made from the atoms of 2 or more elements that are chemically bonded!
Element-pure substance made of only one kind of atom
Extensive property-depends of the amount of matter that is present
Gas-matter is this state has neither definite volume nor definite shape
Heterogeneous-not uniform throughout
Homogeneous-uniform in composition
Intensive property- does not depend on the amount of matter that is present!
Liquid- matter in this state has a definite volume but an indefinite shape
Mass- measure of amount of matter
Matter- anything that has mass and takes up space
Mixture- blend of 2 or more kinds of atoms, each of which retains its own identity and properties
Physical change-a change in a substance that does not involve a change in the identity of the substance
Physical property-characteristic that can be observed or measured without changing the identity of the substance
Plasma-high temperature physical state of matter in which atoms lose their electrons
Product-substances that are formed by chemical change
Pure substance-has fixed composition and differs from a mixture, in these ways
1. Every example of a given substance has exactly the same characteristic properties
2. Every sample of a given pure substance has exactly the same composition...
View Full Essay
