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Chem 121 Test Prep Flashcards | StudBud
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Chem 121 Test Prep
Chem 121 Test Prep
19 terms
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Bonding, Naming, Formulas, Reaction types, Molecular geometry,
Flashcards
19 cards
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Practice quiz
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Questions
19
Answers
1
The following reaction, N
2
+ 3H
2
-> 2NH
3
, is an example of what type of reaction?
Double-displacement
Combustion
Synthesis
Single-displacement
2
Name the substance with the formula HgCl
2
Merchloride
Monomercury dichloride
Mercury (II) chloride
Mercury chloride
3
Sample Question
This is the right answer
This is the wrong answer
Incorrect
This is wrong
4
What is the 3D shape of CH
3
Cl?
Trigonal Pyramid
Trigonal planar
Tetrahedral
Linear
5
What are the charges of ions in salts?
Negative cations & Positive anions
Positive cations & Negative anions
Positive cations & Positive anions
Negative Cations & Negative anions
6
Combustion reactions ALWAYS have...
O2 as a reactant
Cations and anions as products
CO2 and H2O as products
4 products
7
When the correct Lewis structure for Chloromethane (CH
3
Cl) is drawn, what is the central atom?
Carbon
Chlorine
No center atom, they make a ring
Hydrogen
8
Sample Question 2
This is a correct answer
Incorrect
This answer is wrong
There can be multiple correct answers, this is one of them
9
"Polar bonds" refer to....
A transfer of electrons from one atom to another
Don't pick this answer
A covalent (sharing) bond with even pulls
A covalent bond with uneven pull for electrons on each side
10
Acids can be identified from their chemical formula from...
"H" after a metal
"H" before an anion
"OH" before a metal
"OH" after a cation
11
Name the substance with the formula Al
2
O
3
Aluminum oxide
Dialuminum trioxide
Bialuminum trioxide
Dualuminum tripoxide
12
"Salts", by chemical definition, refers to...
The combination of an acid and base
Two or more atoms sharing electrons
NaCl
The combination of cations and anions
13
True/False: Acid & Base reactions are a form of double-displacement reactions
This answer is wrong
True
False, Acid & Base reactions are forms of synthesis
False, Acid & Base reactions are forms of combustion
14
The term "electronegativity" refers to....
Negative ions
The tendency of an atom to pull electrons from another atom
How strong of a pull an atom has for electrons
The shape of the pathway of electrons
15
What is the 3D shape of HNO?
Bent
Trigonal Pyramid
Linear
Trigonal Planar
16
Name the substance with the chemical Formula P
4
O
10
Phosphoric acid
Phosphate
Wrong
Tetraphosphorous decoxide
17
True/False: Large differences in electronegativity between atoms results in ionic bonds
True, electrons are stolen/given away in ionic bonds
False, big differences in the value will make nonpolar bonds
False, ions are formed from small differences in pull for e-
True, this could also make polar bonds
18
Strong bases are usually identified from their formula with...
"H" after a metal
"OH" after a cation
"OH" before a metal
"H" before an anion
19
Describe the polarity of HNO according to the Lewis Structure
Only non-polar bonds, non-polar molecule
Polar bonds, non-polar molecule
Only non-polar bonds, polar molecule
Polar bonds, Polar molecule
