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20 QuestionsShow answers
Question 1
SURVEY
60 seconds
Q. Which of the following is a pure substance?
answer choices
CO
C02
Co
H2O
Question 2
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60 seconds
Q. How many different elements are in this chemical formula: C2H2ClK3
answer choices
6
8
2
4
Question 3
SURVEY
60 seconds
Q. Which of the following is a pure substance?
answer choices
O2
Al2CO5
C6H12O6
SiO2
Question 4
SURVEY
60 seconds
Q. Can be found on the periodic table
answer choices
Element
Compound
MIxture
Question 5
SURVEY
60 seconds
Q. What is krypton?
answer choices
element
compound
mixture
Question 6
SURVEY
60 seconds
Q. Identify
answer choices
Element
Compound
Mixture
Question 7
SURVEY
60 seconds
Q. What is the chemical symbol for Titanium
answer choices
Ti
TI
Tm
Sn
Question 8
SURVEY
60 seconds
Q. Elements are made of
answer choices
Many types of atoms
the Periodic Table
One type of Atom
Molecules
Question 9
SURVEY
60 seconds
Q.
What is an Atom?
answer choices
The smallest piece of a living thing.
The smallest particle or piece of a pure substance.
The largest particle or piece of a pure substance.
Two compounds put together.
Question 10
SURVEY
60 seconds
Q.
What is a Compound?
answer choices
One element and more than one atom.
Two or more elements combined; more than one capital letter.
Two or more atoms combined; a number greater than one.
Two or more small particles joined together.
Question 11
SURVEY
60 seconds
Q. I have an object that is dull, brittle, and an insulator, what is it?
answer choices
metalloid
non-metal
metal
matter
Question 12
SURVEY
60 seconds
Q. When an object shatters when struck by a hammer.
answer choices
luster
malleable
brittleness
ductile
Question 13
SURVEY
300 seconds
Q. Which element is a metalloid?
answer choices
Titanium
Selenium
Potassium
Polonium
Question 14
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300 seconds
Q. A student is given a sample of an unknown substance. He is asked to determine if it is classified as a metal, a metalloid, or a nonmetal. He discovered that the unknown element conducted some heat and electricity, had a shiny luster, and broke easily. This element is most likely a
answer choices
metal
nonmetal
metalloid
cannot be determined
Question 15
SURVEY
300 seconds
Q.
Which table below correctly lists the properties of metals and nonmetals? *
answer choices
A
B
C
D
Question 16
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300 seconds
Q. How would this element be classified?
answer choices
Metal
Nonmetal
Metalloid
Metamorphic
Question 17
SURVEY
300 seconds
Q. Some students conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table . Based on these observations, which sample is most likely a nonmetal?
answer choices
Sample 1
Sample 2
Sample 3
Sample 4
Question 18
SURVEY
300 seconds
Q. A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal?
answer choices
Hydrogen
Arsenic
Krypton
Copper
Question 19
SURVEY
120 seconds
Q. Which of these grouping of elements could have the characteristic of luster (shiny)?