pure substance, mixture, solutons etc.

Question 1

pure substance

Answer 1

matter that has a fixed composition and unique properties ( 1 element or compound homogenous)

Question 2

mixture

Answer 2

contains at least 2 compounds that are physically combined

homogenous or heterogenous

Question 3

element

Answer 3

homogenous

only 1 type of atom

Question 4

compound

Answer 4

homogenous

2 or more chemically combined elements

Question 5

solution

Answer 5

homogenous

special kind of mixture with 2 phases (solute dissolves and solute does the dissolving)

Question 6

heterogenous example

Answer 6

always a mixture

2 of more physically combined substances such as air or muddy wate

Question 7

tyndal effect

Answer 7

scattering of light by particles in a colloid or suspension

Question 8

homogenous mixtures

Answer 8

mixture where the components are evenly distributed among each other.

u cant see component parts

constant composition throughout and homogenous mixtures are called solution

Question 9

solutions

Answer 9

well mixed ( uniform)

homogenous

transparent

cannot be separated by filtration

do not separate on standing

Question 10

heterogenous mixtures

Answer 10

components are not evenly distributed among each other

has two or more distinct phases that are usually detectable

does not have uniform properties

heterogenous mixtures that look like solutions can be distinguished as they scatter light

Question 11

colloids

Answer 11

non transparent

non uniform

large particles

cloudy

stable system

Question 12

suspensions

Answer 12

system does not stay stable and settle

mud, flour, paint, chalk, dust

Question 13

aerosol

Answer 13

suspension of liquid droplets or fine solid particles in a gas is called an aerosol