Catégories : Tous - mixture - safety - solubility - solute

par Robertson Aaliyah Il y a 8 années

445

pure substances and mixtures by Aaliyah Larissa Vanessa

The text elaborates on the concepts of solutions and mixtures, emphasizing the distinction between homogeneous and heterogeneous mixtures. It discusses the behavior of particles in different states and the importance of solubility, highlighting how substances dissolve to form solutions.

pure substances and mixtures by Aaliyah Larissa Vanessa

kinetic energy

gas

the particles move far apart to all areas of the container filling it completely

liquid

the particles slide over and around each other

solid

the particles vibrate and wiggle in one place

pure substances and mixtures

Controled variable

A test in which the independent variable is kept constant in order to measure changes in the dependent variable
It's a variable that cannot be changed

Unsaturated

In organic chemistry, a saturated compound is a chemical compound that has a chain of carbon atoms linked together by single bonds.

matter

Subtopic
made up of particles
has mass and occupies volume

dissolve

(with reference to a solid) become or cause to become incorporated into a liquid so as to form a solution.
"glucose dissolves easily in water"

concentrated

(of a substance or solution) present in a high proportion relative to other substances; having had water or other diluting agent removed or reduced
is a homogeneous mixture composed of two or more substances.

dilute

make (a liquid) thinner or weaker by adding water or another solvent to it.
"bleach can be diluted with cold water"

the particle theory of matter

each pure substance has its own kind of particle
all matteri s made up of extremely tiny particles

variable

factor
trait
condition
can exist in differing amounts or types.

solvent

solubility

a chemical property referring to the ability for a given substance,

science safety

keep long sleeves
pay attention
gloves
follow instructions
wash hands
tie long hair back
clean area
no running

homogeneous

is a term in physical chemestry and materials science that refers to substances and which are in a single phase.

Heterogeneous

a process involving substances in different phases (solid, liquid, or gaseous).

concentraited

solution

s a homogeneous mixture composed of two or more substances

Saurated

soaked, impregnated, or imbued thoroughly; charged thoroughly or completely; brought to a state of saturation.

mechanical mixture

A heterogeneous mixture of particles or masses distinguishable as such under the microscope or separable by filtration.

mixtures

variable amount of substances
made up of more then one substance with different particles

pure substances

constant composition of substances
made up of only one type of particle

particale

the particles of matter are in constant motion
temperature will affect the speed at which the Particles move
Particles have forces of attraction between them
particles of one substance are identical to each other
there are spaces between particles

independent variables

some thing you can change or manipulate in the experiment
this will usually affect the dependent variables

solute

is a mixture
is a substance dissolved in another substance
it is known as solvent

dependent variable

something you measure or observe in the experament