safety and matter Review

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Name ____________________
Period ____
Chapter 1: Introduction to Chemistry/ Lab Equipment and Safety
Chapter 3: Matter – Properties and Changes
TEST REVIEW
Draw a picture of each piece of lab equipment
1.
Beaker
2. Graduated cylinder
3.
Bunsen burner
4. Erlenmeyer flask
For each statement below, write TRUE or FALSE
5. When smelling a chemical in lab one should use the wafting technique to prevent harmful chemicals
from being inhaled directly.____
6. When water and acid are mixed together heat is given off. The proper procedure for diluting an
acid is to add water into acid._____
7. When weighing out a chemical on the balance it is appropriate to weigh the chemical directly on the
balance pan._____
8. An intensive property depends on the amount of material present. ______
9. Matter is described as anything that has mass and takes up space._______
Choosing appropriate lab materials for experiments:
10. Your little brother brought a jar of Galveston beach water back from his trip. It has sand
particles, salt particles, and water. Describe or draw the techniques/equipment you would need to
separate this mixture. (Hint- to get all the points here more than one technique is necessary)
11. If a ransom note was found at a crime scene and a suspected writing utensil was found at the
scene, which separation technique would you use for comparison? (Distillation, chromatography,
filtration, evaporation) Draw the set up for this experiment.
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Labeling
12. Label as solid, liquid or gas and describe the movement/spacing of particles including information
about definite volume in the table below. (Look carefully, they’re not “in order”.)
PHASE
C
B
A
How do the atoms
move?
Is volume the same when
the container is open?
What is the space
between atoms like?
A
B
C
13. Circle the words that make the statement trueAll of the following phase changes in the
diagram below are considered ( physical / chemical ) ( changes / properties )
14. Explain the difference between a monatomic gas and diatomic gas by looking at the image below.
_Monatomic gases are made of____________________________
_________________________________________________
while diatomic gases are_______________________________
__________________________________________________
For each item, write the letter of the matching item in the word bank.
____ 15. Refers to physical characteristics such as color, odor, or shape
____ 16. Refers to mass, volume, temperature
____ 17. A variable controlled by the experimenter
a. Observation
b. Qualitative data
c. Quantitative data
____ 18. Changes in value based on the controlled variable
d. Independent variable
____ 19. The act of gathering information
e. Dependent variable
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Read the following experiments and answer the questions.
20. One tank of gold fish is fed once a day, a second tank twice a day, and a third tank four times a
day during a six week study. The fish’s body fat is recorded. (Hint- try drawing the graph for the
X/Y and the variable on the X is the independent, the variable on the Y axis is the dependent
variable. Label the axis as well as plotting the data you think will occur.
A. What is the independent variable
____________________________
B. What is the dependent variable?
_______________________________
Study the classification of matter shown:
Circle the appropriate word for the statements below.
21. Elements – ( can / cannot ) be broken down into smaller substances by chemical or
physical means.
22. Compounds – can be decomposed by
( physical / chemical ) means.
23. Mixtures - ( can / cannot ) be separated by physical means.
>>>24. In the picture above, circle the boxes containing pure substances.
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Use each of the terms below just once to complete the passage.
chemical
physical
density
properties
mass
substance
Matter is anything with (25)_____________ and volume. A (26)______________ is a form of matter with a
uniform and unchanging composition. Substances have specific, unchanging (27) _____________ that can be
observed. Substances have both physical and chemical properties.
(28)
_______________ properties can be
observed without changing a substance’s chemical composition. Color, hardness, and
(29)
____________ are
examples. Other properties cannot be observed without changing the composition of a substance. These are
called
(30)
_____________ properties. An example is the tendency of iron to form rust when exposed to air.
Use the following words once to fill in the passage below.
Heterogeneous
Sand-water mixture
Mixtures
Solutions
Matter is categorized as either a substance or a
(32)__________.
(31)__________.
An example of a substance is
Mixtures are categorized as either homogenous mixtures or
mixtures. Another name for a homogenous mixture is a
mixture is
Salt-water mixture
Water
(35)___________.
(34)_____________.
An example of a homogenous mixture is
(33)_____________
An example of a heterogeneous
(36)________________.
Circle the letter of the choice that best completes the statement or question.
37. A substance that cannot be separated into simpler substances by physical or chemical means is a(n)
a. Compound
b. Element
c. Mixture
d. Solution
38. A chemical combination of two or more different elements is a(n)
a. Compound
b. Element
c. Mixture
d. Solution
39. Which of the following is an example of an element?
a. Copper (Cu)
b. Water (H2O)
c. Air
d. Sugar (C12H22O11)
40. Which of the following is an example of a compound?
a. Water (H2O)
b. Air
c. Silver (Ag)
41. Which of the following is an example of a solution?
a. Copper (Cu)
b. Sugar(C12H22O11)
c. Water (H2O)
d. Copper (Cu)
d. Air
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42. Label groups/family # 1, 2, 14-17 above zig-zag, (17’s special name), 18 on the periodic table below.
Also, what does the shaded group represent?
Zig-zag boxes:
43. List the properties of a metal vs the properties of a nonmetal.
(Use these properties: “can conduct electricity”, insulator, malleable, brittle, ductile, lustrous (shiny), dull, hard,
soft(can bend without breaking), sometimes responds to magnets, usually a gas at room temperature,)
Metals
Nonmetals
a. _____________________________
a. _____________________________
b. _____________________________
b. _____________________________
c. _____________________________
c. _____________________________
d. _____________________________
d. _____________________________
e. _____________________________
e. _____________________________
f. _____________________________
Physical/Chemical Properties (Extensive vs Intensive)
Identify the follow properties as Chemical or Physical by placing a check in the appropriate box.
For physical properties, indicate whether the property is Extensive or Intensive.
Which physical property changes if more of the material is there? (Extensive or Intensive properties)
Which physical property stays the same, even if material is added ? (Extensive or Intensive properties)
Property
43.
Volume
44.
Flammability
45.
Ductility
46.
Ability to corrode
47.
Mass
48.
Malleability
49.
Length
50.
Color
Chemical
Physical
Physical Properties Only
Extensive
Intensive
51. Reacts with water
52. Know element symbols from quiz!
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