Chemical Bonds only SL Chemistry | Baamboozle - Baamboozle

Which statements regarding alloys are correct?

I and III only

I, II and III

I and II only

II and III only

Which compound contains both ionic and covalent bonds?

NaNO3

H2CO

SiH4

Na2O

Which compound has the shortest C–N bond?

CH3CN

(CH3)3CNH2

CH3NH2

CH3CHNH

Which of the following does NOT hydrogen bond?

CH3F

CH3NH2

CH3OH

HF

In which case is the bond polarity incorrect?

δ+K–Oδ–

δ+Mg–Hδ–

δ+ I-Cl δ–

δ+H–Fδ–

Which of the following best describes the changes that Which of the following best describes the changes that occur in the forces of attraction between CO2 molecules as they change phase from a gas to a solid?

London (dispersion) forces operate to form the solid

C-O bonds are formed

CO2 molecules crystallize around a nucleation point

Ionic bonds between CO2 molecules are formed

Which of the following molecules has a dipole moment?

NF3

SiH4

BCl3

F2

How many resonance structures are there of ozone?

2

1

3

4

In the cyanide ion (CN–), the nitrogen has a formal charge of

0

+2

-2

-1

Which of the following would you expect to have th ehigest melting point?

iodine

bromine

chlorine

fluorine

Which of the following molecules contains a double bond?

carbon dioxide

ammonia

water

hydrogen fluoride

Which of the molecules obeys the octet rule?

O3

PCl5

BH3

NO2

In the gaseous phase, which of the following diatomic molecules would be the most polar?

CsF

CsCl

NaCl

LiF

Atoms with greatly different electronegativity values are expected to form

ionic bonds

triple bonds

double bonds

no bonds

In which pair do both compounds exhibit predominantly ionic bonding?

RbCl and MgS

BaF and H2O

Na2SO3 and NH3

SCl4 and HF

What is the electron geometry, molecular geometry and bond angles in PF3. Is it polar?

electron = tetrahedral; molecular = trigonal pyramidal. angles - <109.5; polar

What is the electron geometry, molecular geometry and bond angles in BF3. Is it polar?

electron = trigonal planar; molecular = trigonal planar. angles - 120; non-polar

Name all the intermolecular forces in HCl

dipole-dipole and LDF only

Which intermolecular force does NOT exist when KF is dissolved in NH3?

ion-induced dipole

ion-dipole

hydrogen bond

dipole-dipole

What is the electron and moelcular geometry of chlorate ion? Is it polar?

Electron: tetrahedral. Molecular : Trigonal pyramidal. : It is polar because it is both asymmetric and it is an anion. (draw please w lone pair on chlorinei

What is the electron and moelcular geometry of sulfate ion? Is it polar?

It is tetrahedral for both electron and molecular geometry. Since it is an anion it is polar

Why is CHCl3 more polar than CCl4?

CCl4 is symmetric and therefore no net dipole; CHCl3 is asymmetric

What is the electron and molecular geometry for carbon dioxide. From this data, is it polar?

Electron: linear. Molecular: linear. - It is symmetric therefor NOT POLAR

Which molecule is most polar?

CHF 3

CF 4

CCl 4

CClF 3

Which combination describes the sulfate(IV) ion, SO32– (also known as sulfite ion)?

D

C

B

A

The Lewis (electron dot) structure of the ethanedioate ion is shown. Outline why all the C–O bond lengths in the ethanedioate ion are the same length

electrons delocalized «across the O–C–O system» or RESONANCE

Which series shows the correct order of metallic bond strength from strongest to weakest?

Mg > Na > K > Rb

Rb > K > Na > Mg

Mg > Rb > K > Na

Na > K > Rb > Mg

How many resonance structures are there for sulphite ion? How many lone pairs?

1 lone pair and 3 resonance structures.

What is the molecular geometry of the carbonate ion? What would be the angles?

trigonal planar; 120 degrees

Best explanation here that graphite is softer than diamond

layers can slide/move

graphite is in a tetrahedral arrangement

every carbon atom has a strong bond to the other

the carbons have 4 bonds

What would be the best use of graphite?

electrode

lubricant because it is soft and slippery with weak forces

used in drill heads

decorative stone for rings

Give at least 2 (two) ways to refer to this adorable looking allotrope of carbon

any 2: Bucky ball OR C-60 OR fullterene OR buckminsterfullerene

How many covalent bonds does graphite have?

3

Why do MOLTEN ionic solids conduct electricity?

When an ionic substance is molten the ionic lattice is broken down allowing the ions to move freely and so conduction occurs.

Why do ionic solids NOT conduct electricity?

This is due to the fact that ions are not free to move in a solid as they are arranged in an ionic lattice.

Which of the following would you expect to have the highest melting point?

magnesium fluoride

dinitrogen oxide

phosphorous trichloride

hydrogen chloride

What do sodium ions have in common with chloride ions?

they both have the same sized charge

they are both cations

they are both anions

they both form covalent bonds

What is the arrangement of the bonds in diamond as shown in this structure?

tetrahedral - (4 bonds each 109.5 degrees apart)

Which of the following is the definition of an allotrope?

2 or more different physical forms in which an element exist

The same chemical formula but a different structure

Different numbers of neutrons but same protons

Different states of a compound

What is the formula for the compound sulfur hexachloride?

SCl6

What is the charge on group 1 metals?

1+

What is the suffix for all binary ionic compounds of representative elements?

-ide

Charlie claims that a single sodium ion and a single oxygen ion do not bond together to form a stable binary ionic compound. Is he correct? You must explain completely

Charlie is correct. The sum of the charges of the two ions must be zero in order for them to form a stable ionic compound.

What is the chemical formula for diamond?

C(s)

In the formation of the compound of sodium chloride

a sodium atom donates an electron to a chlorine atom

Covalent bonds take place between

two nonmetals

Which rule must be fulfilled by sharing or transferring electrons to create bonds in order for an element to be stable?

octet rule

What will the result be when a reaction between bismuth and fluorine takes place?

BiF3

Which pairs of words correctly completes the statement? Ionic compounds form when____ and _____ react.

metals ; nonmetals

Unknown element W has 2 valence electrons. Unknown element X has 7 valence electrons. Which formula shows the most likely outcome when elements W and X react?

WX2

What is the name of the compound Ni(NO3)2

Nickel (II) nitrate

What is the chemical formula for the compound barium bromide?

BaBr2

What is the name of the compound SrSO4

strontium sulfate

What is the sum of the charges in a compound?

0

A chemical formula includes the symbols of the elements in the compound and subscripts that indicate

the number of atoms or ions of each type

What is the metallic ion in the compound CuCl2?

Cu2+

Calcium (Ca) is in the second column of the periodic table and is classified as an alkaline earth metal. Which of the following formulas shows the ratio of a compound formed from calcium and iodine(I)?

CaI2

What is the formula for the compound formed when a potassium ion(K+) and a sulfide ion (S-2) unite?

K2S

What is the overall charge of the compound sodium chloride?

0

What is the chemical formula for calcium oxide?

CaO

What is the formula for the compound formed by magnesium cation (Mg+2) and a fluoride anion (F-)

MgF2

What is the formula for the compound formed when aluminum ions(Al 3+) and chloride ions (Cl -) unite?

AlCl3

Covalent compounds are formed when atoms

share valence electrons