Elements, Compounds and Mixtures Flashcards
The four common mixtures are?
Solutions, Colloids, Suspensions, Emulsions
What is a solution?
A mixture in which a soluble liquid or solid is dissolved in a solvent.
A mixture is made up of….?
Two or more substances
A mixture is made up of two or more substances which may be ……..or …………? Mixed in any …………?
Elements, compounds, proportions
In a solution, what is the substance being dissolved
A solute
Colloids cannot…..
Pass through semi-permeable membranes
A Solution is always …….even if coloured
clear
What are suspensions?
Suspensions are very small but visible particles of a solid suspended in a liquid. The cells form a suspension in whole blood.
What are emulsions?
Droplets of one liquid are suspended in another liquid. Bile salts act as emulsifiers to allow the dispersion of fats in the intestine.
Mixtures can be ………….. into their …………..components.
separated, original
Most matter naturally occurs as…….?
Mixtures
In a solution, the solute does not…….. out and it cannot be………. out
settle, filtered
In a solution, what dissolves a substance
a solvent
Proteins in the body form…….. mixtures.
Colloidal
What is a Colloid?
A mixture where particles are too small to be seen but big enough to diffract light.
In a mixture, the substances keep their own ……..?
Properties
Name three mixtures in the natural world?
Saline (salt water), air, most rocks
In a mixture the ……. keep their own …………….as they are not chemically …………..
substances, properties, bound
Name four common mixture types?
Solution
Emulsion
Suspension
Colloid
Solutions are always………
Clear
What are some basic examples of solutions?
Salty water
Coca-cola
Wine
Vinegar
Black tea
Solutions are always clear and can pass through……. ……. ……..(3 words)
Semi-permeable membranes
What is the definition of a suspension?
It is ……….. and …………on standing.
……..are too………..to fit through ……. ………..
Murky, settle.
Particles, large, filter paper.
Anything that says shake before use is probably a …..
Suspension
