1.1 What is Chemistry?

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http://www.ck12.org Chapter 27. Glossary


27.9 I


ideal gas law
PV=nRT.

ideal gas
Gases that conform to the basic principles of kinetic-molecular theory.

immiscible
Molecules don’t mix well together, and form a heterogeneous mixture- exhibiting a noticeable bilayer.

indicator
Used to measure pH. Changes color depending on the pH of the solution.

inductive reasoning
Involves getting a collection of specific examples and drawing a general conclusion from them.

initial rate of reaction
The rate at the very beginning where the reactant concentration has not changed appreciably and the product
concentration is negligible.

insoluble
It does not dissolve, and it does not dissociate in water.

intensive properties
Physical properties that do not depend on amount. Examples include color, taste, melting point, boiling point,
density, luster, and hardness.

ion
Formed when elements either gain or lose electrons.

ion-product constant
An equilibrium constant. Kw= [H+][OH−] = 1.0× 10 −^14 at 25°C

ionic bond
An electrostatic attraction between two ions that have exchanged electrons.

ionic compounds
A compound formed by ions bonded together through electrostatic forces.

ionic equation
An equation in which dissolved ionic compounds are shown as free ions.
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