Ch1 Matter and measurement Flashcards
(20 cards)
Is the study of properties and behavior of matter.
Chemistry
Is anything that has mass and takes up space
Matter
Are the building blocks of matter
Atoms
Are made of a unique kind of atom
Element
Is made of two or more different kinds of elements
Compound
The three states of matter are?
Solid
Liquid
Gas
Has distinct properties and a composition that does not vary from sample to sample.
Substance
________is a substances which can NOT be decomposed to simpler substances.
Element
________is a substance which CAN be decomposed to simpler substances.
Compound
Compounds have a definite composition. That means that the relative number of atoms each element that makes up the compound is the same in any sample.
The Law of Constant Composition
OR
The Law of Definite Proportions
_________ exhibit the properties of substances that make them up. I
Mixtures
Another name for a homogeneous mixture is _______
Solution
_____ MIxture an vary in composition throughout a sample
Heterogenous
Mixtures can have the same composition throughout the sample
Homogeneous
Can be observed without changing a substance into another substance
Physical properties
Can only be observed when a substance is changed into another substance
Chemical properties
Independent of the amount of the substance that is present
Intensive Properties
Depend upon the amount of the substance present.
Extensive Properties
Are changes in matter that do NOT change the composition of a substance
Physical Changes
Result in new substances
Chemical changes