Test #5; Chapter 6 Flashcard

Acids
Substances that produces H+ ions in water, tastes sour, reacts with metals and carbonates.
Bases
Substances that produces OH- ions in water, tastes bitter, feel slippery.
Indicators
A compound that changes color when in contact with an acid or a base.
Cabbage Juice
Turns red for acids, blue for bases.
Phenolphthalein
Turns pink for bases.
Litmus Paper
Acids turn blue litmus red. Bases turn red litmus blue.
Golden Rod
Turns red for bases.
Universal Indicator
Turns reddish for acids, bluish for bases.
pH Scale
Show concentration of hydrogen ions.
0-7 are acids, 7 is neutral, 7-14 is basic.
How strong acid or base is.
Neutralization
An acid reacts with a base to produce a salt and water. No longer harmful.
Mixtures
Two or more substances that are not bonded together chemically and can be separated by physical means.
Solution
An evenly mixed mixture (the same throughout).
Solute
What is being dissolved into the solvent.
Solvent
The solute is dissolved into this,
Settle/Strain
Let large particles in suspension sink to bottom and pick them or strain them out.
Filter
Particles in suspension cannot pass through a filter.
Distillation
Boil away solvent to leave dissolved solute behind.
Unsaturated
When more and solute can still be dissolved.
Saturated
When solution is so concentrated (strong) that no more solute can be dissolved. Reached maximum amount.
Supersaturated
When more solute can be dissolved in solvent by changing temperature or pressure.
Solubility
How much solute can be dissolved in a solvent.
Colloids
A mixture where particles do not dissolve or settle (in a between a solution and suspension).
Suspensions
A not evenly mixed mixture where particles settle to the bottom.

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