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Mixtures-True/False
#1

Mixtures are made of only 2 things. True or False

False

#2

In all mixtures individual parts can be seen.

False, you cannot see them in solutions.

#3

AFTER I DISSOLVED SOME SOLUTE IN A SOLVENT I NOTICED THAT NO MORE WOULD DISSOLVE.  HOW COULD I DETERMINE IF I HAVE A SATURATED SOLUTION?

YOU COULD ADD MORE SOLVENT TO SEE IF YOU COULD GET THE REST OF THE SOLUTE TO DISSOLVE.

#4

WHAT ARE FOUR METRIC UNITS FOR VOLUME?

LITERS, MILLILITERS, DECALITERS, CENTILITERS, HECTOLITERS, KILOLITERS, DECILITERS

#5

NAME GIVEN TO SOLUTES THAT CAN BE DISSOLVED.

SOLUBLE

Solutions
#1

Solutions are examples of mixtures. T/F

True

#2

Solutions cannot be separated back into original parts.T/F

False, using evaporation they can be separated.

#3

WHAT WOULD BE THE FIRST STEP IN MEASURING HOW MUCH DISSOLVED SALT IS IN A SOLUTION?

FILTER OUT THE UNDISSOLVED SALT.

#4

WHEN A SOLUTION HAS DISSOLVED ALL THE SOLUTE IT CAN IT IS CALLED A ....

SATURATE SOLUTION

#5

Give all the special characteristics of a solution. There should be 4. If you get 3 out of the 4 you get all points.

dissolving, solvent and solute, evaporation, cannot see individual parts

Mixtures and Solutions
#1

Dissolving a solute makes the mass of a solvent increase? True//False

true

#2

If I add 25 grams of solute to a solvent how much does the mass of the solution increase?

by 25 grams

#3

I made a solution by putting 30 grams of solute into the solvent. I evaporated the solvent in a solution. How much solute will be left?

30 grams

#4

State all the evidence something has to have to be called a mixture? If you get 2 out of 3 you get the points.

made of two or more substances, can be separated back into separate substances, can see individual parts

#5

I combine a solute and a solvent. After stirring the solute is at the bottom of the solvent. Have I made a mixture and a solution or both?

No, just a mixture was made.

Mixtures and Solutions 2
#1

Give two things beyond having 2 or more substances and being able to separated that solutions have to make them special mixtures.

dissolving, cannot see individual parts

#2

I add pepper to water. The pepper stays on the top of the water even after stirring. Is this a mixture, solution or both?

It is just a mixture.

#3

NAME GIVEN TO SOLUTES THAT CANNOT BE DISSOLVED.

INSOLUBLE

#4

We we put 80 ml. of water together with 10 grams of salt, how much does the solution weigh?

90 grams

#5

These solutions were compared for concentration. Which is more concentrated? Explain 

solution 1 - 50 ml. of water 15 grams of sand solution 2 - 50 ml. of water and 10 grams of sand

Neither is more concentrated because they are not solutions. Sand and water will not make a solution.

solutions
#1

GIVE ME 4 METRIC UNITS FOR MASS.

GRAMS, MILLIGRAMS, DECAGRAMS, CENTIGRAMS, HECTOGRAMS, KILOGRAMS, DECIGRAMS

#2

SUE MIXED TOGETHER 7O ML OF SOLVENT AND SOME SOLUTE.  IT CREATED A SOLUTION.  SAM MIXED TOGETHER 60 ML OF THE SAME SOLVENT AND SOME  SOLUTE.  WHEN HE PLACED THEM ON A BALANCE THEY FOUND THAT SUE'S WAS MORE CONCENTRATED.  IS THAT TRUE? EXPLAIN

  

 WE DO NOT KNOW BECAUSE THEY DID NOT COMPARE EQUAL AMOUNTS OF THE EACH SOLUTION.

 

 

#3

A _______________________ looks the same throughout.

 solution

 

 

 

 

 

 

#4

If you mix a solute and solvent together and let it sit for a few minutes, what evidence would there be that it is just a mixture and not a solution? 2 ANSWERS NEEDED

 

 

The solute would be floating or go to the bottom of the cup or you could see the individual parts. No dissolving would have occurred.  

#5

A student adds 3 scoops of solute to 50 grams of solvent.  The solute dissolves.  One scoop of the solute equals 10 grams.  What does the solution weigh?

80 grams

Final Question