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Unit 2 test

Terms in this set (15)

1. What word or set of words best replaces X in the table above?
A) chemical composition
b) Malleability
c) reactivity
d) oxidation
2. A student decided to find the density of her house key to try and identify the type of metal from which it is made. She found the volume of the key to be 5ml and the mass to be 39.5kg.
using the chart above, from which type of metal is the key made?
f) aluminum
g) steel
h) copper
j) gold
3. A student is examining an object in science class. It is a solid, does not conduct, it is malleable, but not ductile, and it a shiny silver color. the sample is most likely a -
a) non-metal
b) metalloid
c) metal
d) semi-conductor
4. Students were given a - metal cylinder and asked to calculate its density. The pictures above show the riders of the triple beam balance - and the water level in the - graduated cylinder before and after the cylinder was inserted.
What is the density of the metal cylinder?
Record your answer and full in the bubbles on your answer document. Be sure to use the correct place value.
5. The volume of an unknown liquid is shown in the graduated cylinder. The mass of the liquid is 105 grams. What is the density of the unknown liquid?
a) 3500 g/mL
b) .33 g/mL
c) 3.0 g/mL
d) 3.3 g/mL
6. A student is examining an object in science class. It is pale yellow, brittle solid, with no shine. The sample is mostly likely a -
f) nonmetal
g) metalloid
h) metal
j) semi-conductor
7. A student is testing a silver rock sample with the lab equipment shown in the diagram above. the silver rock completes the circuit and lights the bulb. The student concludes the sample could be which of the following?
I) metal
II) metalloid
III) non-metal
a) I
b) I, II
c) I, II, III
d) II, III
8. A student found a pretty rock while hiking with her family. She discovered that the rock will scratch glass, but not her steel knife. According to Mohls Hardness Scale, what does the student know about the rock?
f) it is harder than quartz, but softer than topaz
g) it is harder than corrundum, but softer than gypsum
h) it is harder than calcite, but softer than fluorite.
J) It is harder than fluorite, but softer than quartz
9. How would you classify Sample 1 on the table above?
a) metal
b) nonmetal
c) metalloid
D) compound
10. A student is implementing an investigation of physical properties using samples of metals, nonmetals, and metalloids. She used a battery, wires, and a bulb to test if each of the samples will complete the circuit causing the bulb to light. Next, she shines a bright light on each of the samples.
Which physical property is the student investigating?
f) streak and hardness
g) luster and conductivity
h) streak and conductivity
j) hardness and luster
11. Students tested four materials by hitting each sample with a hammer to compare them for malleability. The table below shows the results of their tests. Which sample is most likely a nonmetal?
a) sample a
b) sample b
c) Sample c
d) sample d
12. When metals, nonmetals and metalloids are compared according to luster, which is the best description of the appearance of metalloids?
f) dull
g) powdery
h) shiny
j) either shiny or dull
13. A student measured the mass and volume of a metal sample using a triple beam balance and a graduated cylinder. The sample has a mass of 16.7 grams and volume of 4.4 cm cubic. What is the density of the metal sample?
Record your answer and full in the bubbles on your answer document. Be sure to use the correct place value.
14. Students in the lab group are asked to determine the identity of several substances based on the density of each substance. They measured the mass and column of each substance and recorded it in the table below.
The group then calculated the density of each substance and compared it to the table of densities below. Which unknown substance is mist likely aluminum?
f) substance 1
g) substance 2
h) substance 3
j) substance 4
15. A student is testing several minerals in science class. First, he scratches the minerals across a tile, and then he scratched the minerals with a copper penny and a steel tool. What physical properties is the student testing?
a) color and state
b) streak and hardness
c) luster and conductivity
d) pH and fracture
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