Polarity and Electronegativity
Which element is the most electronegative
N
F
O
C
What is Fluorine?
How many valence electrons are in PF3?
What is 26?
Will Cr(NO3)3 (aq) + KCl (aq) result in a precipitation reaction?
What is no?
How can the following equation best be interpreted?
N2 + 3 H2 ® 2 NH3
1 mole of N2 completely reacts with 3 moles of H2
What is the formula for diphosphorus pentoxide
What is P2O5?
In the molecule formaldehyde, CH2O, a double bond is found between
What is carbon and oxygen?
True or false, Mg(s) + O2(g) when they react will result ion a redox reaction?
What is True?
Which of the following has a greater mass?
2 mol of H2O or 2 mol of NH3
What is 2 mol if H2O?
Which compound contains a nonpolar covalent bond?
HF
NaF
F2
NH3
What is F2?
How many lone pairs of electrons are in the Lewis structure of PF3?
What is 10?
Which is an acid-base reaction?
AgNO3(aq) + NaBr(aq) ® AgBr(s) + NaNO3(aq)
OR
H2SO4(aq) + 2 KOH(aq) ® 2 H2O(l) + K2SO4(aq)
What is H2SO4(aq) + 2 KOH(aq) ® 2 H2O(l) + K2SO4(aq)
What is the molar mass of methanol, CH3OH, to four sig figs?
What is 32.04 g/mol?
Which bond is more polar? C-N or C-F?
What is C-F?
What is the molecular geometry around the carbon atom in carbon disulfide, CS2?
What is linear?
Identify the oxidizing agent and the reducing agent in the following reaction.
Fe2O3(s) + 3 CO(g) ® 2 Fe(s) + 3 CO2(g)
What is CO is the reducing agent; Fe2O3 is the oxidizing agent
f 56 g of K is reacted with 56 g of oxygen gas according to the equation below, indicate the mas of product that can be made and identify the limiting reactant.
4K (s)+ O2 (g) --> 2 K2O (s)
67g K2O; K is the limiting reactant
What is the name of XeF4
WHat is xenon tetrafluoride?
How many charge clouds (regions of electron density) are around the sulfur atom in H2S and what is the shape of the H2S molecule?
Four charge clouds, non-linear bent?
What is the balanced equation for Sulfur dioxide reacting with molecular oxygen to form sulfur trioxide?
What is 2 SO2 + O2 ---> 2 SO3
Which of the following statements is TRUE?
A pair of electrons involved in a covalent bond is sometimes referred to as a "lone pair."
In a covalent bond, the shared electrons interact with the nuclei of both of the bonding atoms, thus lowering their potential energy.
It is not possible for two atoms to share more than two electrons.
Single bonds are shorter than double bonds.
A covalent bond is formed through the transfer of electrons from one atom to another.
In a covalent bond, the shared electrons interact with the nuclei of both of the bonding atoms, thus lowering their potential energy.