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Physical Science Chapter 11
Flash cards for Chapter 11 Science Test in Mrs. Jackson's Freshman Physical Science Class
25
Science
9th Grade
03/19/2011

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Term
Acid
Definition
any substance that is capable of donating protons
Term
Ionization
Definition
the process of splitting a molecule into charged particles
Term
Bronsted-Lowry Theory of Acids
Definition
the theory that defines an acid as a proton donor;developed by J.N. Bronsted and T.M. Lowry
Term
Hydronium Ion
Definition
the ion formed by the donation of a hydorgen ion to a water molecule, H3O (+)
Term
Arrhenius Acid or Base
Definition
Defines acid as a substance that increases the concentration of H+ when dissolved in water and a base as a substance that increases the concentration of OH- when dissolved in water
Term
Hydroxide Ion
Definition
a polyatomic ion with a negative charge, consisting of an oxygen atom and a hydrogen ion; OH-
Term
Base
Definition
any substance that is capable of accepting a proton
Term
Indicator
Definition
an organic compound that shows a definite color change when it reacts with an acid or a base
Term
pH Scale (pH)
Definition
a scale that is used to indicate the relative concentrations of hydronium ions in a solution
Term
Salt
Definition
subtance that is formed from the negative ion of an acid and the positive ion of a base
Term
Neutralization
Definition
reaction between an acid and a base that produces salt and water
Term
Where are Hydronium Ions located?
Definition
acids
Term
Where are Hydroxide ions located?
Definition
bases
Term
What are some properties of Acids?
Definition
1.Sour taste, 2. Conduct Electricity, 3. Corrodes Metal, 3. Neutralizes a Base
Term
What are some properties of Bases?
Definition
1. Bitter taste, 2. Slippery Feel, 3. Neutralizes Acids
Term
What color do Bases turn litmus paper?
Definition
Blue
Term
What color do Acids turn litmus paper?
Definition
Red
Term
What is a solution that has a pH of less than 7?
Definition
an acid
Term
What is a solution that has a pH greater than 7?
Definition
Base
Term
What is a solution that has a pH of 7?
Definition
it is neutral
Term
What color does a base turn Phenolphthalein?
Definition
Pink
Term
What color does an acid turn Phenolphthalein?
Definition
clear(colorless)
Term
The stronger the base, the more What are produced when combined with water?
Definition
hydroxide ions
Term
The stronger the Acid, the more What that are produced when combined with water?
Definition
hydronium ions
Term
What two things does a neutralization reaction produce?
Definition
salt and water
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