matter Flashcards
What is a property of matter? What are the two types?
something that describes how an object looks feels or acts.
physical and chemical properties
A ______ property of matter can usually be observed with the senses. It can be observed without changing the nature of the matter. List two examples of this property.
physical
color, size, volume, density, boiling or melting point, magnetism, and solubility are some
What is an intensive property?
A physical property of matter that does not depend on the amount of substance present
What is an extensive property?
A physical property that depends on the amount of substance present.
What is an example of an intensive property? (list 3)
Color, odor, temp, freezing point, melting point, boiling point, density, state of matter, malleability, ductility (some examples)
What is an example of an extensive property? (list 3)
Size, length, width, volume, mass, weight (some examples)
A ___ property of matter can only be determined by changing a substance’s identity, possibly through a reaction. What are some examples of this kind of property? List two
Chemical property
Reactivity, toxicity, flammability, combustibility
What is a physical change?
A change that takes place without altering the molecular composition of a substance.
Same matter before and after the change
What is a chemical change?
A change that ocurrs when matter changes into a new substance and has a new chemical property. Affect the molecular makeup of the substance.
What are the (particle) properties of a solid?
tightly packed together and don’t move about much within the substance
What are the (particle) properties of a liquid?
molecules are some distance apart and can move around
What are the (particle) properties of a gas?
molecules are far apart and can move around freely
The shape and volume of a solid _____
do not change
A liquid has a ____ shape and a _____ volume
undefined
defined
What is viscosity?
The speed at which molecules move in a substance - the resistance to flow, or the friction between the molecules
A liquid has a _____ shape and a _____ volume
defined
defined
Which of the common 3 states of matter has the highest kinetic energy? What does that mean for that state of matter?
Gas
gas molecules move quickly and are able to overcome the attraction between themselves
Which state of matter is not compressible? Which can be compressed a little? Which simply can be compressed?
Solid
Liquid
Gas
What is compressibility?
The change in volume resulting from applied pressure