S Vocabulary
Vocabulary
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7.6.D - Aqueous Solutions
7.6.E - Rate of Dissolution
100
A homogeneous mixture of substances. One substance (the solute) is dissolved in another substance (the solvent).
What is a solution?
100
A solution in which the solvent is water
What is an Aqueous Solution?
100
Average kinetic energy of all the particles in a material; measured by a thermometer in degrees
What is Temperature?
100
The part of a solution that gets dissolved.
The part of a solution that does the dissolving.
What is Solute - Dissolved
What is Solvent - Dissolving
100
When you agitate a solution it makes it dissolve _______.
Faster
200
A substance that dissolves in another substance (solvent) to form a homogeneous mixture.
What is a Solute?
200
A measurement of the amount of solute that is dissolved in a given quantity of solvent
What is Concentration?
200
The speed at which a solute spreads out uniformly into a solvent
What is Rate of dissolution?
200
Adding more water to Kool-Aid makes it weaker. This word describes that action.
What is Dilution
200
Which of these has a faster rate of dissolution? Why?
The granulated sugar. Surface Area
300
A substance in which another substance (solute) is dissolved to form a homogeneous mixture.
What is a Solvent?
300
The process of decreasing the concentration of a solute in a solution, usually simply by mixing with more solvent like adding more water to the solution.
What is Dilution?
300
When two or more atoms combine
What is a Molecule?
300
This solution is the most concentrated
What is 5.
300
What are the 3 main factors of the Rate of Dissolution?
Temperature, Surface Area, and Agitation
400
The exposed area of a solid; expressed as squared units of length.
What is Surface Area?
400
The process of a solute becoming uniformly dispersed in a solvent, resulting in the formation of a solution
What is Dissolve?
400
A substance made up of atoms of two or more different elements joined by chemical bonds
What is a Compound?
400
A student mixes Gatorade powder with water. It tastes too strong. How they can dilute it and what happens to the concentration?
Add more water (solvent), it will decrease the concentration.
400
A student drops three sugar cubes into three cups of water:
Cup A: hot water, stirred
Cup B: hot water, not stirred
Cup C: cold water, stirred
Which cup will dissolve the sugar cubes the fastest, and why?
Cup A, because higher temperature and stirring both increase the rate of dissolution
500
The ability of a solute to dissolve in a solvent at a specific temperature and pressure.
What is Solubility?
500
The stirring or mixing of a solution so as to increase the particle movement of the solute particles in solution
What is Agitation?
500
A substance that cannot be separated or broken down into simpler substances by chemical means
What is an Element?
500
Mrs. Penske stirs sugar into iced tea until no more sugar will dissolve and some sits at the bottom of the glass. What type of solution has he made?
A saturated solution
500
Increasing this variable allows more solvent molecules to directly contact the outer particles of a solid solute at once, significantly speeding up how quickly it dissolves.
What is surface area?