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Chemathon Quiz Flashcards | StudBud
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Chemathon Quiz
Chemathon Quiz
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Chemathon is a contest for chemistry students.
Flashcards
22 cards
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Practice quiz
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Questions
22
Answers
1
This halogen has possible oxidation numbers of -1, +1, +5, or +7?
argon
chlorine
krypton
neon
2
This element has the largest atomic radius.
Francium
Silver
Barium
Lead
3
This Russian scientist first created the periodic table that we use today.
AntoineLaurent de Lavoisier
Johann Dobereiner
Dmitri Mendeleev
Glenn Seaborg
4
This nonmetal’s oxidation # is always -1 (covalent compounds).
chlorine
oxygen
hydrogen
beryilium
5
Geometric shape of CH
4.
trigonal
tetrahedral
planar
trigonal pyrimidal
6
His constant, which is used to calculate the energy of orbitals is 6.634 x 10-34J·s.
John Dalton
Sir Isaac Newton
Einstein
Max Planck
7
The oxidation number of carbon in the carbonate ion.
+4
+2
+3
-4
8
This is what undertakers do with dead bodies after the funeral.
chlorination
Barium
Kryptonium
Selenium
9
This is the oxidation number of sodium chloride.
+3
+2
-2
+1
10
What shape is oxygen difluoride?
trigonal pyramidal
linear
trigonar planar
angular (bent)
11
Geometry of phosphorus pentachloride
Trigonal bipyramidal
Linear
square planar
pyrimidal
12
The possibility of teleporters are “uncertain” thanks to his principle.
DeBroglie
Summerfield
Werner Hiesenberg
Bohr
13
This scientist won two Nobel Prizes for her discovery of the elements Radium and Polonium.
Ida B. Wells
Marie Curie
Lise Meitner
Rosalind Franklin
14
Who wrote the Atomic Theory?
Max Planck
Isaac Newton
Democritus
John Dalton
15
This is the oxidation number of sodium in sodium chloride.
+1
-2
-1
+2
16
Who first described properties of liquids and pressures & studied math, religion, etc.
Margaret Cavendish
Galileo Galilei
•Blaise Pascal
Girolamo Fracastoro
17
When a metal atom combines with a nonmetal atom, What happens?
gain electrons and increase in size
lose electrons and increase in size
lose electrons and decrease in size
gain electrons and decrease in size
18
Barium + Sodium + Sodium
banana
Bass
Bnana
19
Compared to the charge and mass of a proton, an electron has
the same charge and the same mass
an opposite charge and a smaller mass
an opposite charge and the same mass
the same charge and a smaller mass
20
What is the fourth most abundant element in the universe in terms of mass?
nitrogen
Neon
Oxygen
Carbon
21
The oxidation number of oxygen in H
2
O
2
.
-2
+1
+2
-1
22
Which set of elements contains a metalloid?
Li, Mg, Ca, Kr
Ba, Ag, Sn, Xe
Fr, F, O, Rn
K, Mn, As, Ar
