Download Bundle 3 Exam Review

Name: _______________________________________________________________ Date: __________________ Pd: _____________
Review for Bundle 3 Exam: Matter
Instructions: Answer all of the questions on this review and return to your teacher on the day of your
test. SHOW ALL WORK on any problems that involve calculations and answer each question completely
to receive credit.
1. A sample liquid is cooled from 150°C to 30°C, causing the liquid to change into a solid. What type of
change has occurred and how do you know?
2. When the fuse ignites the contents of a firework, oxygen is consumed and carbon dioxide is released
as a result of which type of change? What type of chemical reaction is being described?
3. Balance the following equation. Show your work in a T – table and write the coefficient ratio of the
final balanced equation.
___ Ca(OH)2(aq) + ___ CO2(g) → ___ CaCO3(s) + ___ H2O(l )
4. You wake up early to prepare breakfast. You love banana pancakes when the banana is sliced and
mixed in the pancake mix before cooking AND sliced and put on top of the pancakes with the syrup.
This leaves you with the option of being able to eat the banana in the pancakes or pick them out to eat
by themselves. The pancakes that you want are considered what kind of mixture? Explain your
answer.
5. Digestion involves both chemical and physical changes. Write the type of change that occurs in the
digestive system in each stage of digestion below.
Stage of Digestion
Saliva breaking starch into simple sugars
Teeth chewing steak
Enzymes breaking down proteins into amino acids
Intestines draining water from digested food
Small intestine pushing digested material toward the
colon for removal from the body
Chemical or Physical Change
Name: _______________________________________________________________ Date: __________________ Pd: _____________
6. An experiment is performed in which a crystalline substance is added to a beaker filled with room
temperature water. The following observations were made:
I. The crystals dissolve.
II. A precipitate is formed.
III. The bottom of the beaker feels warm to the touch.
IV. Bubbles begin forming within the water.
Write each observation in the correct column in the table below:
Chemical Change
Physical Change
7. Hydrogen peroxide (H2O2) is a toxic by-product of cellular metabolism in aerobic organisms. The
reaction shown occurs within the cells to prevent the accumulation of hydrogen peroxide.
H2O2  H2O + O2
What kind of reaction is this? _______________________________________________________________
Is this a balanced reaction?
YES
NO
If not, balance it below and show your work.
8. If enough heat was REMOVED from B, it would change into which substance below?
Name: _______________________________________________________________ Date: __________________ Pd: _____________
9. If 58 grams of NaCl is used to produce 143 grams of AgCl and 85 grams of NaNO3, how many grams of
AgNO3 is used in the following reaction? SHOW ALL OF YOUR WORK.
NaCl + AgNO3  AgCl + NaNO3
10. In the space below, create the Matter Concept Map used in class. You must have all of the
following vocabulary correctly organized in your map:
Homogeneous Mixture
Pure Substance
Solution
Solute
Heterogeneous Mixture
Solvent
Compound
Colloid
Element
Mixtures
Suspension
11. What type of reaction is represented by the equation Fe + Cl2 → FeCl3? _________________________
Balance this equation and show your work below.
Name: _______________________________________________________________ Date: __________________ Pd: _____________
Use the graph below to answer questions 12 - 14.
12. Heat is added between points D and E. All of the heat being added is going to do what to the
substance?
13. The curve above represents the Heating Curve of Water. In which section of the graph will frozen
water melt into a liquid? What happens to the temperature in this section of the graph? Why?
14. Heat is removed from liquid water starting at 85°C until all of the liquid has become frozen into ice
at 0°C. Which parts of the water curve above represent this process? Explain why the sections
you chose represent each process in the question.
15. You need a bit of energy to make it through the last of the day. You add some sugar to your water
to make it taste a bit better and gain some extra energy. The sugar that you have just added would
be considered the ________________________________________ and the water would be the
__________________________________________________.
16. If you mix Calcium Oxide with Aluminum, it will yield Aluminum Oxide and Calcium. What type of
chemical reaction is this? ____________________________________________________________________________
Balance the chemical equation for this reaction, and state its coefficient ratio.
CaO + Al → Al2O3 + Ca
Name: _______________________________________________________________ Date: __________________ Pd: _____________
17. What type of chemical reaction absorbs energy and requires energy for the reaction to occur?
What type of chemical reaction emits energy and does not require energy to occur?
18. The following equation for the photosynthesis reaction is unbalanced.
6CO2 + H2O
C6H12O6 + 6O2
Balance this chemical equation and state the coefficient ratio. SHOW YOUR WORK.
19. Which equation properly describes the reaction between X and Y?
A. 3X + 8Y  X3Y8
B. 3X + 6Y  X3Y6
C. X + 2Y  XY2
D. 3X + 8Y  3XY2 + 2Y
20. In a chemical reaction, the total mass of the reactants is _________________________________________________
________________________________________________________________________________________________________________.
21. Sublimation is the process by which certain materials change directly from a solid to a gas without
becoming a liquid first. Frozen carbon dioxide, which is called dry ice, undergoes sublimation.
What kind of change is this and which phases of matter are represented in the process?
22. Sodium chloride (NaCl) can be separated from rock salt by first adding water to the mixture to
dissolve the sodium chloride. The separation then takes place in two stages. Explain the two
stages needed to correctly separate NaCl from rock salt below.
Name: _______________________________________________________________ Date: __________________ Pd: _____________
Analyze the table below, and use it to answer question #23.
The following symbols each represent one atom of different elements:
23. Which of the above correctly represents a chemical equation showing the law of conservation of
mass in a chemical reaction? Explain your answer.
24. What are the correct coefficients needed to balance the following equation? SHOW ALL WORK.
____Al + _____ O2 → ____ Al2O3
Use the chart below to answer question 25.
Reaction
Reactant
Reaction 1:
NaOH
NaOH + HCl  NaCl + H2O
HCl
Reaction 2:
Mercury II
Decomposition of mercury II oxide
oxide
Mass
80 g
73 g
433 g
Product
NaCl
H2O
Liquid
mercury
Mass
?
36 g
401 g
25. A chemist measured the mass of mercury II oxide, and then heated it and measure the mass of the
resulting liquid. Her measurements are shown in the chart.
Why is the mass of the product less than the mass of the reactant?
26. In your classroom, when Ammonium Hydroxide is mixed with Copper (II) Sulfate, the products are
a powdery substance called Copper (III) Hydroxide and a liquid known as Ammonium Sulfate.
Your teacher says this is a chemical change. What is the evidence of her claim?