Human Anatomy and Physiology: USC Bridge 1.2 molecules, compounds, and mixtures Flashcards

Two or more atoms bonded together i.e.: H2

Molecule with two or more different kinds of atoms bonded together i.e.: C6H12O6

can be separated only by breaking bonds

are all homogeneous or the same

Two or more components physically intermixed 3 types: solutions, colloid, suspension

no chemical bonding between components

can be separated by straining or filtering

heterogenous or homogeneous

Homogeneous mixtures of components that may be gasses, liquids, or solids.

Solute particles are very tiny, do not settle out or scatter light

Weight/volume mg/dl

percent or parts per 100 parts

molarity or moles/liter- most precise way of describing a concentration of a solution

Present in the greatest amount

Substance present in the smallest amount

A mole of any element or compound is equal to its atomic weight

One mole of any substance always contains exactly the same number of solute particles

Also called emulsion, are heterogeneous mixtures which means that their composition is dissimilar in different areas of the mixture.

Solute particles are larger than in a solution and scatter light; do not settle out

colloids can change from liquid to gel

Heterogeneous mixture

visible solutes that tend to settle out

solute particles are very large, often visible, settle out and may scatter light

Compound

Solutions