chemical & physical properties Flashcards
what is matter?
takes up mass & space
what property doesn’t change what the matter is? (solid stays solid)
physical property
examples of physical property
mass, volume, compressibility, density, specific heat, viscosity, boiling point, melting point, color
what property does it not matter the amount of substance you have?
intensive property
density, boiling/melting point, viscosity, and color are the examples of what property?
intensive property
what does extensive property depend on?
depends on how much substance you have
what are some examples of extensive property?
mass, volume, length
what is viscosity?
measure of a fluid/gas resistance to change in shape or movement
what side of the periodic table are the metals located on?
left side
what are cations?
positive charged ion
what are some properties of metals?
lustrous (shiny), malleable (can be made into a shape), ductile (can stretch), conductors of heat & electricity
the right side of the periodic table belongs to what type of material?
non metals
what are anions?
negative charged ions
are non metals or metals good conductor insulators?
non metals
what non metal insulators are there?
gasses and brittle solids
what are some examples of non metals?
Neon, Bromine, Iodine, Sulfur
what is a chemical property?
when a substance combines with another substance or completely changes into another substance
reactivity, corrosion, oxidation (rust), flammability are properties of what?
chemical property
what happens to the appearance and composition of a substance during physical change?
appearance changes, composition don’t change
what is composition?
what the substance is made of, what chemicals are in the substance
what is a chemical reaction?
a change in composition
cooking, combustion, tarnish, and oxidation are all examples of what change?
chemical change
what is a precipitate?
a solid
what are the 4 indicators of a chemical change?
- (unexpected) color change
- produced gas
- formation of a precipitate
- energy change (temperature change)
what does the prefix -endo mean?
internal, inside
what prefix would mean external or outside?
-exo
what energy change releases energy to make your body hot?
exothermic
what is endothermic?
absorbs energy, so makes you cold
when you exercise, you sweat, which makes you hot – this is an example of what energy change?
exothermic
what is deposition?
when gas changes to solid without going through the liquid phase first, it goes straight through
what is sublimation?
when solid changes directly to gas without melting first
condensation is what phase change?
gas to liquid
when gas goes to liquid would it be exo or endo?
exothermic
how does liquid go to gas?
vaporizes or boils
would vaporization be endo or exo?
endothermic
how would liquid go to solid?
freezing
is freezing endo or exo?
exothermic
what phase change is melting?
solid to liquid
would going from solid to liquid be endo or exo?
endothermic
what is it called when gas goes to solid?
deposition
would deposition be endo or exo?
exothermic
what is the phase change for sublimation?
solid to gas
is solid to gas endo or exo?
endothermic
what material do cations make up?
metals
what material do anions make up?
non metals
