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Physical Science 8th > 10.34.F - Quiz: Chemical Bonding > Flashcards

10.34.F - Quiz: Chemical Bonding Flashcards

1
Q

Argon has eighteen electrons. The orbitals go like this: 1s2 2s2 2p6 3s2 __6. What is the last orbital?

3p
3d
2d
4s

A

3p

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2
Q

What is the percentage of probability that the electron will be somewhere in a particular shell or cloud?
Correct Answer
90%
80%
92%
95%

A

90%

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3
Q

Carbon has six electrons. Two of them will be found in the 1s orbital close to the nucleus. The next two will go into the 2s orbital. The remaining ones will be in two separate ___ orbitals.
3p
3s
2d
2p

A

2p

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4
Q

What is an atom with either a negative charge or a positive charge called?
electron
neutron
proton
ion
element
atom

A

ion

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5
Q

Chlorine forms the chloride ion to bond with many metals. To become a chloride ion with a -1 charge, a chlorine atom must __________.
lose one electron
gain one proton
lose one proton
gain one electron

A

gain one electron

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6
Q

Every atom’s goal is to get ________ electrons in its valence shell.
6
8
10
12

A

8

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7
Q

The floating electrons form this between the metallic atoms.
wall of electrons
colliding nuclei
paste of electrons
sea of mobile electrons

A

sea of mobile electrons

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8
Q

Most metals look silver because they _________________.
are very dense
are electromagnetic
reflect the white and black rays of light
reflect all wave lengths of light
have a lattice structure

A

reflect all wave lengths of light

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9
Q

In metallic bonding, there must be ___________ atoms together sharing electrons.
few
two
many
no

A

two

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10
Q

The electrons of carbon and hydrogen are _____________ in this molecule of methane.

transferred
donated
shared
charged

A

shared

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11
Q

When substances with covalent bonds dissolve, what breaks apart from each other?
ions
electrons in the atom
molecules from other molecules
nucleus in the atom
atoms in the molecule
mixtures

A

molecules from other molecules

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12
Q

A chlorine atom reacts with a sodium atom to form sodium chloride (NaCl). A chlorine atom can also react with another chlorine atom to form a chlorine molecule (Cl2). Which statement BEST explains the behavior of chlorine in these two reactions?
A chlorine atom can form an ionic bond with another atom by accepting an electron.
A chlorine atom can form a covalent bond with another atom by sharing electrons.
A chlorine atom can form ionic bonds by sharing electrons and covalent bonds by accepting an electron.
A chlorine atom can form ionic bonds by accepting an electron and covalent bonds by sharing electrons.

A

A chlorine atom can form ionic bonds by accepting an electron and covalent bonds by sharing electrons.

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13
Q

What is the correct name for the compound with the formula Mg3N2? (You can use your periodic table of ions.)
magnesium nitrogen
trimagnesium dinitrogen
magnesium nitride
trimagnesium dinitride

A

magnesium nitride

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14
Q

What is the correct formula for dinitrogen pentoxide? (You can use your periodic table of ions.)
Ni2O5
NO5
NiO5
N2O5

A

N2O5

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15
Q

What is the correct name for the compound P2O5? (You can use your periodic table of ions.)
diphosphorus oxide
phosphorus pentoxide
phosphorus oxide
diphosphorus pentoxide

A

diphosphorus pentoxide

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16
Q

Which is the correct formula for dinitrogen trisulfide? (You can use your periodic table of ions.)
N2S2
N3S3
N S
N2S3

A

N2S3

17
Q

Is this equation balanced or unbalanced?
CH4 + Cl2 -> CCl4 + HCl

the equation is unbalanced, and the correct balance would be CH4 + 4Cl2 –> 2CCl4 + 4HCl
the equation is unbalanced, and the correct balance would be 2CH4 + 4Cl2 –> CCl4 + 4HCl
the equation is unbalanced, and the correct balance would be CH4 + 4Cl2 –> CCl4 + 4HCl
the equation is balanced

A

the equation is unbalanced, and the correct balance would be CH4 + 4Cl2 –> CCl4 + 4HCl

18
Q

Is this equation balanced or unbalanced?
P4O10 + 6H2O -> 4H3PO4

the equation is balanced
the equation is unbalanced, and the correct balance would be P4O10 + 6H2O –> 4H3PO4
the equation is unbalanced, and the correct balance would be 2P4O10 + 4H2O –> 3H3PO4
the equation is unbalanced, and the correct balance would be P4O10 + 3H2O –> 6H3PO4
the equation is unbalanced, and the correct balance would be 2P4O10 + 3H2O –> 4H3PO4

A

the equation is balanced

19
Q

Is this equation balanced or unbalanced?
Fe + Cl2 -> FeCl3

the equation is unbalanced, and the correct balance would be 2Fe + 3Cl2 –> 2FeCl3
the equation is unbalanced, and the correct balance would be 3Fe + 2Cl2 –> 2FeCl3
the equation is balanced
the equation is unbalanced, and the correct balance would be 2Fe + Cl2 –> 2FeCl3

A

the equation is unbalanced, and the correct balance would be 2Fe + 3Cl2 –> 2FeCl3

20
Q

Is this equation balanced or unbalanced?
H2 + O2 = H2O

the equation is unbalanced, and the correct balance would be 2H2 + 2O2 = 2H2O
the equation is unbalanced, and the correct balance would be 2H2 + O2 = 2H2O
the equation is unbalanced, and the correct balance would be 2H2 + 2O2 = H2O
the equation is balanced

A

the equation is unbalanced, and the correct balance would be 2H2 + O2 = 2H2O

21
Q

Fe(s) + CuSO4(aq) –> FeSO4(aq) + Cu(s)

This chemical equation represents a ______________ reaction.

single-replacement
double-replacement
decomposition
synthesis

A

single-replacement

22
Q

A reaction in which two or more substances combine to form a new substance is called a ______________.

synthesis reaction
single-replacement reaction
combustion reaction
double-replacement reaction
decomposition reaction

A

synthesis reaction

23
Q

Which combustion equation violates the law of conservation of matter?
CH4 + 2O2 –> CO2 + 2H2O
2C6H14 + 19O2 –> 12CO2 + 14H2O
C3H8 + 6O2 –> 3CO2 + 4H2O
2C8H18 + 25O2 –> 16CO2 + 18H2O

A

C3H8 + 6O2 –> 3CO2 + 4H2O

24
Q

This element has ____ valence electrons.

A

two

25
Q

It is impossible to create a Lewis dot diagram unless you know how many __________ electrons are in an element.

A

Valence

26
Q

What is a covalent bond? Give an example of a covalent compound. Please respond in 1–2 complete sentences using your best grammar.

A

Your Answer:
A covalent bond is the combining of two nonmetals. An example of this is dinitrogen trioxide.

27
Q

What occurs when an acid and a base react? Please respond in 1–2 complete sentences using your best grammar.

A

Your Answer:
When they react, they form a substance known as salt.

28
Q

What is an ionic bond? Provide an example. Please respond in 1–2 complete sentences using your best grammar.

A

Your Answer:
An ionic bond is the combining of a metal and a nonmetal. An example of this is sodium Nitride.

29
Q

What is a metallic bond? Provide an example. Please respond in 1–2 complete sentences using your best grammar.

A

Your Answer:
A metallic bond is a combination of metals. An example of this includes Iron and nickel.

Physical Science 8th (30 decks)

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