Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chapter 21

DHS PS Ch. 21 - Solutions (2015/2016)

QuestionAnswer
What statment best allows you to predict which substance will dissolve in which substance? "Like dissolves like"
A saturated solution will usually dissolve more solid solute if it is? heated
A bottle of soda fizzes when opened because the dissolved gas? comes out of solution
Which would "not" increase the rate at which sugar cube dissolves? reducing the amount of solvent
In soda pop, the solvent would be the? water
The air that you breathe is an example of a(n)___ solution? gaseous
Water is sometimes referred to as the universal solvent because? It is a small molecule and can fit easily among the molecules of many solutes
One commonly used precise way to describe concentrations of solutions is to state____. The percentage by volume of the solute
What is the first step of the dissolving process? The moving molecules of the solvent surround the molecules of the solute
Soap has a(n) end that will dissolve in water and a long hydrocarbon end that will dissolve in oily dirt ionic (polar)
Which of the following types of solutes would dissolve well in water? polar molecules
What makes ethanol (alcohol) so versatile? It dissolves in both polar and nonpolar solvents
Substances that do not ionize in water and cannot conduct electricity are called? nonelectrolytes
Soaps are salts of fatty acids which are long hydrocarbon molecules with a _____ at one end. -COOH group
Gases are ____ in cooler solvents. more soluble
A substance that does NOT conduct an electric current when it forms a solution is a(n) _____. nonelectrolyte
Which are the water soluble (polar) vitamins? B's & C
The solubility of calcium chloride, CaCI2, is 75g/100 g H20 at 20 degrees Celcius. A solution of 75g of CaCI2 in 100 g of water at 20 degree Celcius is? saturated
You can make a solute dissolve more quickly in a solvent by heating the solvent
Dissolving sodium chloride in water will? lower the freezing point of the solution
The type of solution that contains a large, not precise, amount of solute in the solvent could be described as? concentrated
An example of a gas-liquid solution is a soft drink
A molecule that is positively charged on one end and negatively charged on the other end is? polar
How can you increase the solubility of a gas in a liquid? increased pressure, decreased temperature
The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its? solubility
Which property allows water molecules to dissolve sugar? both polar, opposite charge
Which of the following will increase the speed of dissolving of a solid solute in water? stir the solution
Saltwater is a __________? solution
What happens when the pressure on a soda is decreased? some gas comes out of solution
Generally, as the temperature of a liquid solvent ______, the amount of solid solute that can dissolve in it? increases, increases
An alloy is an example of a _____ solution. solid
Because electrons are distributed equally, a hydrocarbon is _____. nonpolar
Pennies minted after 1984 contain 97.5% zinc and 2.5% copper. These coins are examples of alloys
Air contains 78% nitrogen, 21% oxygen, and 1% argon. Which gas is the solvent? nitrogen
A solution that contains all of the solute it can hold at a given temperature is? saturated
Adding more solute to a solvent _____. increases its boiling point
The process by which the positive and negative ions of a crystalline solid (ionic compound) separate in water is called? dissociation
When a gas is dissolved in a liquid, the gas dissolves faster if the liquid is cooled
Suppose 150g of cesium chloride are stirred into 100g of water at 20 degrees C. If 75g sink to the bottom of the container, what is the solubility of cesium chloride in water at 20 degrees C? 75
Which of the following combinations would increase the solubility of a gas in a liquid? increase the pressure and decrease the temperature
What are the 4 fat soluble (nonpolar) vitamins? A,D,E, & K
In a solution, the substance that is being dissolved is the ____. solute
Increasing the surface area of a solid ____. speeds the rate of solution
Loose sugar dissolves much faster than a sugar cube because loose suger? has a greater surface area
The oceans are an example of a(n) _____ solution liquid
A ____ is the substance being dissolved in a solution solute
What characteristic of water makes it the universal solvent? polar and small
A ____ is a large molecule made of carbon and hydrogen atoms hydrocarbon
Because electrons are distributed equally, a hydrocarbon is? nonpolar
What makes ethanol so versatile? it dissolves in both polar and nonpolar solutes
Which is the best source of Vitamin C 1 cup of orange juice
A _______ is a mixture that has the same composition, color, density, and even taste throughout. solution
A molecule that has a positive and negative end is called ______. polar
Salt water is composed of salt as the _____ and water as the _____. solute, solvent
A carbonated soft drink is made from CO2/sugar as the _____ and water as the _____. solute, solvent
A can of frozen OJ and water is composed from water as the _____ and OJ as the _____. solvent, solute
The three phases of matter are _____, _____, and _____. solid, liquid, gas
Where at on the solid does dissolving occur when placed in a liquid? on the surface
Both sugar and water are _____ which means they have slightly _____ and _____ ends. polar, positive, negative
How would you dissolve solids in solids? they should be melted first before mixing them together
What are three factors that can affect the rate at which dissolving occurs? stirring, reducing crystal size, or increasing the temperature
How does stirring speed up the dissolving process? it brings more solvent in contact with more solute
How does temperature affect the rate of dissolving? the kinetic energy of the particles increases as the temperature increases causing more solvent to bump into more solute
Air contains 78 percent nitrogen, 21 percent oxygen, and one percent argon. Which gas is the solvent? nitrogen
Sterling silver contains 92.5 percent silver and 7.5 percent copper. Which substance is the solute? copper
A _____ is the substance being dissolved in a solution. solute
As the temperature of a liquid solvent increase, the speed at which the solute dissolves __________. increases
Increasing the surface area of a solid ______ the rate of a solution. speeds up
Which one of these is a solution: muddy water or salt water? salt water
A mixture that appears to have the same composition, color, and density and is mixed at the molecular level is called a(n) ______. solution
Does decreasing the temperature cause an increase of the dissolving rate? no
Would increased pressure, decreased temperature cause the solubility of a gas in a liquid to increase? yes
A solution that contains all the solute it can hold at a given temperature is ______. saturated
Generally, as the temperature of a liquid solvent _____, the amount of solid solute that can dissolve in it ______. increases, increases
______ is the maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature. solubility
Gases are ______ in cooler solvents. more soluble
Would "40 percent juice by volume" be considered a precise term? yes
If more solute can be added to a solution at a given temperature, you know that the solution is _________? unsaturated
If a solute crystallizes out of a solution when a seed crystal is added, what kind of solution is it? supersaturated
Substances that do not ionize in water and cannot conduct electricity are called _______. nonelectrolytes
_______ are compounds that form charged particles. electrolytes
The process in which water molecules draw ions away from a crystalline solid and into solution is _______. dissociation
Adding a solute to a solvent ______ the freezing point of the solvent. lowers
The process of forming ions by breaking apart molecules in such a way that atoms take on a charge is called _______. ionization
Fish that live in polar waters have a natural chemical antifreeze called _______. glycoprotein
Why does adding a solute affect the freezing point of a solution? added solute particles interfere with the formation of an orderly pattern
Adding solute to a solvent ______ the boiling point. increases
Adding antifreeze to a cars radiator ______ the boiling point and ______ the freezing point. increases, decreases
What characteristic of water makes it the universal solvent? polar
A ______ is a large molecule made of carbon and hydrogen atoms. hydrocarbon
Because electrons are distributed equally, a hydrocarbon is ______. nonpolar
TRUE/FALSE: Nonpolar solvents are useful for dissolving nonpolar solutes. true
What makes ethanol so versatile? it dissolves in both polar and nonpolar solvents
Do nonpolar solutes dissolve in polar solvents? no
A saturated solution will usually dissolve more solid solute if it is ______. heated
A bottle of soda fizzes when opened because the dissolved gas _______ of solution. comes out
Would reducing the amount of solvent increase the rate at which a sugar cube dissolves? yes
In soda pop, the solvent would be: CO2 or water? water
The air that you breathe is an example of a(n) ______ solution. gaseous
Would ethanol dissolve iodine (iodine is nonpolar)? yes
Water is an example of a(n) _______ solvent because it is a ______ molecule that can fit easily among the molecules of many solutes. universal, small
One commonly used PRECISE way to describe concentrations of solutions is to state the ______ by ______ of the solute. percentage, volume
What is the first step of the dissolving process? the moving molecules of the solvent surround the solute molecules
Soap has a(n) ______ end that will dissolve in water and a long hydrocarbon end that will dissolve in oily dirt. ionic
Would polar molecules dissolve well in water? yes
______ is known to be versatile because it dissolves in both polar and nonpolar solvents. ethanol
Substances that do not ionize in water and cannot conduct electricity are called _______. nonelectrolytes
______ are salts of fatty acids which are long hydrocarbon molecules with a -COOH group at one end. soaps
Gases are ______ soluble in cooler solvents. more
A substance that does NOT conduct an electric current when it forms a solution is a(n) ______. nonelectrolyte
You can make a solute dissolve more quickly in a solvent by ______ the solvent. heating
Dissolving sodium chloride in water will ______ the freezing point of the solution. lower
The type of solution that contains a large, not precise, amount of solute in the solvent could be described as _______. concentrated
Would a soft drink be an example of a gas-liquid solution? yes
Created by: basmith