Studied by 2 people
Looks like no one added any tags here yet for you.
what is matter?
Anything that has mass, and volume and takes up space
what are the 4 states of matter?
solid, liquid, gas, plasma
properties of solid
Definite shape and volume
properties of liquid
definite volume, indefinite shape
properties of gas
indefinite shape and indefinite volume
properties of plasma
a high-temperature physical state in which atoms lose most electrons
what is an element?
A pure substance that cannot be broken down and is one type of atom
what is a compound?
a substance that can be broken down and contains two or more elements
what is a physical property?
observed with senses, determined without destroying matter
types of physical properties
extensive and intensive
extensive
Depend on the amount of matter present
ex. mass, volume, length
intensive
Doesn't depend on the amount of matter present ex. density, melting point, boiling point, texture, color
what is a physical change?
a change in size, shape or state of matter; no new substance is formed
ex. dissolving, evaporation, cutting, boiling
what are chemical properties?
Relates to a substance's ability to undergo changes that transform into a different substance
Ex. reactivity, combustion, flammable
what are chemical changes?
happens when one chemical substance is transformed into one or more different substances
ex. Burning, rusting, cooking, reactivity
what are chemical changes also called?
chemical reactions
what are the steps of a chemical change?
reactants and products
what is the law of conservation of mass
matter cannot be created or destroyed
What is a pure substance?
can be an element or a compound; Same chemical makeup despite size; exactly the same chemical and physical properties
ex. compounds and elements
what is a mixture?
contain more than one substance or element
ex. carbon dioxide
types of mixtures
homogeneous and heterogeneous
homogeneous
uniform composition ex. air, sugar, water (solution)
heterogeneous
nonuniform composition ex. Granite, wood, blood
what is specific heat
The amount of energy needed to raise the temperature of 1 gram of a substance by 1 degree Celsius.
formula for cal to joules
1 cal = 4.184 joules
Note 
Flashcard (520)