NEW
Font size
WorksheetsChem race DK014
Total questions: 20
Worksheet time: 20mins
Which has the most particles?
1 mole H2
1 mole Na1+
1 mole Al(OH)3
These are all the same
Empirical Formula = CF2
Molecular formula mass = 192
Molecular Formula = ?
C4F8
C4F
CF8
C2F4
What are the units used for Molar Mass
grams
mols
g/mol
mol/g
When several orbital's of equal energy are available, the electron first fills singly before pairing in any orbital's, this statement was given by
Hund’s Rule
Pauli’s Excusive Principle
Aufbau Principle
None of these
Identify the rule that is being violated
Aufbau's Principle
Pauli's Exclusion Principle
Hund's Rule
Heisenberg uncertainty principle
When across a period, the atomic size decreases so the first IE ___________.
increases
decreases
constant
i am not sure
Factors affecting the ionisation energy:
Atomic radius
Effective nuclear charge
Shielding effect
All of the above
What does electronegativity do as you go across a period?
decrease
no pattern
stay the same
increase
Identify the IMF exist in HBr
london dispersion forces
hydrogen bonding
dipole-dipole forces
ion-dipole forces
Which of the following molecules is the weakest?
F2
H2O
HCl
SO2
According to Arrhenius, what is the definition of an ACID?
a substance that contains hydroxide and ionizes to produce OH-
a substance that contains hydrogen and ionizes to produce H+
a substance that contains hydrogen and ionizes to produce OH-
a substance that contains hydroxide and ionizes to produce H+
According to Bronsted-Lowry, what is the definition of an BASE?
a substance that donates a hydrogen (H+) ion
a substance that donates a hydroxide (OH-) ion
a substance that accepts a hydrogen (H+) ion
a substance that accepts a hydroxide (OH-) ion
If the [H3O+] of a solution is 6.8 x 10-8 M, the pH is
7.17
3.2 x 10-5
7.2
7.62
Identify the type of bonding for LiF.
Ionic bond
Covalent Bond
Dative Bond
Coordinate Bond
The type of stability of electronic configuration for this ion is ________.
Noble Gas Configuration
Pseudo Noble Gas Configuration
Half-Filled Orbital Configuration
Duplet/Octet Configuration
