Chemistry test review

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how many single covalent bonds can halogens form?

1

Multiple covalent bonds consist of which of these?

1 sigma bond and 1 or 2 pi bonds

which combination of bonds is present in tho molecule?

1 sigma bond and 1 pi bond

what is the electronegativity difference in the compound Aluminum Chloride AlCl₃

1.55

which type of bond has an electronegativity difference greater than 1.7?

16

a compound BeCl₂ uses sp hybrid orbitals of Be atom. which of the following is the correct bond angle in the compound?

180°

How many single covalent bonds are elements in Column F likely to form?

2

how many valence electrons are available in the ion NO₃⁻

24

in the compound PCL₃, how many total valence electrons are present?

26

how many total shared electron pairs are in a molecule that displays sp² hybridization?

3

How many single covalent bonds can carbon form?

4

which is NOT a diatomic molecule?

6

which of the following compounds is an exception to the octet rule?

BH₃

which is the correct formula for the compound phosphoric acid?

H₃PO₄

which is the correct formula for the compound dinitrogen monoxide?

N₂O

which is the formula for the compound sulfur hexachloride?

SCl₆

which covalent molecule has the strongest bond?

b

how many pairs of bonding electrons are present in a molecule that displays trigonal bipyramidal molecular shape?

bromine

which of the four diagrams show two atoms forming a covalent bond

c

which exception to the octet rule is shown by this molecule

coordinate covalent bond

identify the correct structure of NO₃⁻

d

which is the correct name for the compound N₂0₄

dinitrogen tetroxide

which is the correct name for the compound N₂O₃

dinitrogen trioxide

a diatomic molecule is one that is made of only 2 different elements

false

all noble gases have the same valence electron configuration

false

all of the bond lengths in a compound having resonating structures are identical

false

an expanded octet is possible using the p-orbital of an element

false

an oxygen atom, having electron configuration 1s² 2s² 2p⁴, forms a single bond with another oxygen atom

false

electron affinity and electronegativity are opposite of one another

false

in a correct Lewis structure, no atom can have more than eight valence electrons surrounding it

false

the bond angle for a molecule with sp³ hybridized atom is always 109.5°

false

the molecules H₂O and Ccl₄, are non polar, as the central atoms, O and C, respectively , are sp³ hybridized

false

what is the correct name for the compound HClO₃

hydrochloric acid

which is the correct name for the compound PCL₅

monophosphorus tetrachloride

which is the correct name for the compound HNO₂?

nitrous acid

based on its electronegativity difference, which kind of bond is present in the compound OF₂

polar covalent

which type of bond has one pair of electrons shared between atoms?

single covalent

which exception to the octet rule is shown by this molecule

suboctet

name the acid with following chemical formula

sulfuric acid

what molecular shape does the compound Ccl₄ have?

tetrahedral

which is true of the bond length of these covalent molecules

the bonds in A are longer than the bonds in B or C

covalent compounds display which of these properties?

their intermolecular forces are relatively weak

which type of molecular shape is shown by this molecule

trigonal bipryamidal

which type of molecular shape is shown by this model?

trigonal planar

a sigma bond is formed between 2 atoms when the valence atomic orbital of one atom overlaps end-to-end with that of the other atom

true

an oxyacid is composed of a hydrogen atom bonded to a polyatomic anion that contains at least 1 oxygen atom

true

electron affinity is the likelihood of an atom to accept an electron

true

hybrid orbitals of an atom are identical and contain one electron pair each

true

noble gases are generally non-reactive because they already have a complete valence shell

true

the breaking of covalent bonds requires the input of energy

true


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