Flashcards in Chapter 4-6 Deck (28):
What is Matter?
Any material that occupies space and has mass
What are properties?
Characteristics used to describe matter
what is homogeneous?
Homogeneous is when everypart of a material is the same and has only one set of properties
What is heterogeneous?
heterogeneuous is made up of parts or mixed and has at least two different properties
What are mechanical mixtures?
Mechanical Mixtures; the differnt parts of this kind of mixture can be easily identified, these mixtures are heterogeneous.
what are solutions?
Solution;different parts of this mixture are not seen with the unaided eye, these are homogeneous mixtures
what are pure substances?
Pure substances; a material that is compressed of only one type of particle
What are mixtures?
Mixtures are a material made up of several different types of materials;in a mixture, each material retains it's own properties
What is the particle theory?
A scientific model of the structure of matter; according to the particle theory, all matter is made up of tiny particles, and each pure subastance has its own kind of particle, different from the particles of other pure substances. Particles attract each other and are always moving.
What is dissolving?
Forming a solution by mixing 2 or more materials
What is a solute?
A solute is the substance that dissolves into a solvent to form a solution
What is a solvent?
A solvent is the substance that dissolves a solute to form a solution
What is soluable?
To be able to disolved into a particulart solvent
What is insoluable?
To not be able to dissolve into a particular solvent
What is the universal solvent?
Water has been called the universal solvent for its ability to dissolve so many materialas
What is hardwater?
Water that contains a lot of dissolved minerals
What is soft water?
Water with few dissolved minerals
What is distillation?
Distillation is a method for seperating the parts of a liquid solution by heating the liquid turning it into gass
What is desalination?
when removing the salt from salty water
What is settling?
Settling means that undissolved matter will, overtime, settle to the bottom of the container
What is unsaturated?
Unsaturated is a solution that will dissolve more solute at a givin temperature
What is saturated?
A solution that has dissolved as much as it can at a given temperature, at this point no amount of stirring can make more solute dissolve
What is supersaturated?
A solution that contains more solute than would normally dissolve at a given temperature
What is soluability?
The mass of a solute that csn dissolve in a given amount of solvent to form a saturated solution
What is rate of dissolving?
Rate of dissolving is a measure of how fast a solute dissolves in a solvent
Factors that affect the rate of dissolving are;
-Rate of stirring
What is Floatation?
This method will seperate materials that are less dense than the liquid. The materials that rise to the top can be scooped out with a spoon