solutions are known as
homogenous mixtures
homogenous mixture
two or more materials are combined in such a way as to form a single phase that has the same composition properties and appearance throughout
minor component of a mixture being dissolved
solute
two types of solutes
electrolytes and non-electrolytes
electrolytes
are ionic compounds which form ions when they dissolve and conduct and electric current
non-electrolyte
a substance that does not readily ionize when dissolved or melted and is a poor conductor of electricity.
heterogeneous mixture
combination of two or more materials in which more than one phase is present
3 types of heterogeneous mixtures
1. those that contain two or more separate phases (oil and water)
2. suspensions, that appear visually to be one but when allowed to stand, settle out
3. colloids, appear homogenous one phase mixtures but are composed of particles too small to be seen wit
suspensions
appear visually to be one but when allowed to stand, settle out
colloids
appear homogenous one phase mixtures but are composed of particles too small to be seen with the naked eye
how are colloids distinguished from solutions
by a beam of light
true or false: all three states of matter can be involved as a solute or solvent
true
tyndall effect
Scattering of a light beam as it passes through a colloid