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Bio Terms 2.2
Bio
12
Biology
9th Grade
11/12/2013

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Term
Hydrogen Bond
Definition
is a weak chemical bond between an electronegative atom.
Term
Cohesion
Definition
is the molecular force between particles within a body or substance that acts to unite them.
Term
Adhesion
Definition
is the molecular force of attraction in the area of contact between unlike bodies that acts to hold them together.
Term
Mixture
Definition
is an aggregate of two or more substances that are not chemically united and that exist in no fixed proportion to each other.
Term
Solution
Definition
is the process by which a gas, liquid, or solid is dispersed homogeneously in a gas, liquid, or solid without chemical change.
Term
Solute
Definition
is the substance dissolved in a given solution.
Term
Solvent
Definition
is a substance that dissolves another to form a solution.
Term
Suspension
Definition
is the state in which the particles of a substance are mixed with a fluid but are undissolved.
Term
PH Scale
Definition
is the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution.
Term
Acid
Definition
is a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases.
Term
Base
Definition
is a compound that produces hydroxide ions (OH-)in solutions.
Term
Buffer
Definition
is a compound that prevents, sharp sudden changes in ph.
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