Name:______

Final Exam Study Guide: Part 2

Mixtures: Write the definition for each vocabulary words. Use your notes if necessary.

Mixture- combination of more than one substance

substance- pure - made of only one substance

homogeneousmixture uniform throughout example: salt water

heterogeneous – mixture that has different parts example macaroni & cheese

Filtration - removes a solid from a liquid – separate a heterogeneous mixture

distillation- evaporating and then condensing – way to separate a homogeneous mixture

chromatography - way to separate a homogeneous mixture using water flowing up filter paper

solution- one phase – a solute is dissolved in a solvent

Pure- 100% made of only one thing

saturatedsolution cannot dissolve any more solute

unsaturated solution can dissolve more solute

dissolve - a solvent mixes with a solute and ends up with only one phase that is uniform

suspension – a heterogeneous mixture w/solid particles

Solvent- substance that does the dissolving (water)

solute- substance that gets dissolved

colloid- heterogeneous but looks homogeneous – microscopically mixed (milk)

aqueous- water solution

phasehomogeneous part of a mixture

Concentration- amount of a specific substance in a mixture

Supersaturated – solution that has dissolved more solute than it normally can – by heating solvent and then dissolving, then cooling

Classify each of the following materials as a substance, a homogeneous mixture, or heterogeneous mixture. If heterogeneous, list the phases and specify if it is a colloid or suspension:

Macaroni & cheese – hetero – cheese & macaroni

Pure gold - substance

Salt water - homo

Spaghetti & meatballs – hetero – noodles & meatballs

Glass

Vegetable oil & water

Clear Rock Candy

Ice Water

An Egg

Can of beans

Starburst

Jolly Rancher

Milky Way Bar

A Jar of pickles

Baking soda

Coca Cola (with bubbles)

Vinegar

Jar of coins

Glass with air bubbles inside

Jello

Wood

Candle wax

Sterling (92.5%) Silver

1.Draw a sketch of a suspension. Label the different parts.

How would you separate the suspension? Name 2 ways.

2.Draw a sketch of a solution and label the parts.

Name 2 ways that a solution can be separated

3.Draw a saturated solution. Label the parts.

4.Explain how you could create a supersaturated solution.

Fill in the blank. Complete using word bank:

PhaseColloid suspensionsaturateddistillation supersaturated solvent

ConcentrationSolutesubstance heterogeneous homogeneous

1.In a solution, the ______does the dissolving.

2.In a solution, the ______gets dissolved.

3.A ______is made of solid particles that are in a liquid. It is a ______type of mixture.

4.If a mixture shows the Tyndall effect, you know it is a ______.

5.A solution is a ______mixture.

6.A ______solution is one that has the maximum amount of solute dissolved, and can’t dissolve any more.

7.To make a ______solution, you heat up a liquid and then dissolve more solute. When it cools down, there is more solute dissolved than normally would be.

8.The ______is the amount of solute dissolved per volume of solvent.

9.A ______is completely pure, and made of only one thing.

10.______is a way to separate a homogeneous mixture.

11.A homogeneous mixture is made up of only one ______.

Multiple Choice

_____1.If you look at a mixture and see 2 different colored parts, you know the mixture is _____
a.)homogeneousb.)a colloidc.)a suspension
d.)a solutione.)heterogeneous

_____2.If you look at a kool-aid solution and see that there is some sugar left on the bottom after stirring, you know the solution is ______.
a.)unsaturatedb.)saturatedc.)supersaturated
d.)not real sugare.)poisoned

_____3.You look at a mixture and it looks all the same, but when you shine a flashlight through it, it glows. You know this mixture ______.
a.)is homogeneousb.)is heterogeneousc.) is a colloid
d.)has the tyndall effecte.)(B), (C), and (D)

_____4.You start off with some sugar water, but it is not sweet enough. You add more sugar and it dissolves. You have now increased the ______of the solution.
a.)homogeneityb.)intelligencec.)value
d.)colore.)concentration

_____5.A(n) ______is when a solute is dissolved in water.
a.)heterogeneous mixtureb.)colloidc.) suspension
d.)aqueous solutione.)(B) and (C)

Name:______

Atomic Structure Review

Atomic mass = # protons + # neutrons

# neutrons = Atomic mass - # protons

Fill in the missing information, rounding atomic mass to nearest whole number:

Name / Symbol / Atomic # / Atomic Mass / # Protons / # Neutrons / # Electrons
F
oxygen
10
15 / 18
44 / 21
41 / 36
U
Group # / Name / What do they react with? / What do they want to be stable? / Electron Configuration ends in? / Example
Group 1
Group 2
Group 7
Group 8
Charge / Where is it found?
Proton
Neutron
Electron

Write the electron configuration (1s22s2…..)for the following elements (use this for reference):

Nitrogen

Neon

Chlorine

Potassium

Define the following vocabulary words:

Atom

Atomic number

Atomic mass

Proton

Neutron

Electron

Metal

Transition Metal

Non-metal

Reactive

Stable

Draw a sketch of Sulfur, show protons, neutrons, and electrons. Label each electron shell (1s, 2s, 2p) and draw the correct number of electrons in each shell.

Name:______

Atomic Structure Review 2nd

Fill in the missing information:

Name / Symbol / Atomic # / Atomic Mass / # Protons / # Neutrons / # Electrons
C
silicon
34
32 / 40
52 / 24
41 / 36
43
86 / 37
85 / 37
117 / 78
Ra

Write the electron configuration (1s22s2…..)for the following elements (use this for reference):

Calcium

Phosphorus

Aluminum

Boron

Draw a sketch of Selenium, show protons, neutrons, and electrons. Label each electron shell (1s, 2s, 2p) and draw the correct number of electrons in each shell.