The Periodic Table
& Bonding
& Bonding
Alkali Metals are found in group ____ of the Periodic Table
1A
The reaction below is an example of a ______ reaction.
CaCO3 --> CaO + CO2
Decomposition
True or False: HBr exhibits hydrogen bonding
False (H is not on the F.O.N)
The molarity of your HCl sample 3.14 M. This molarity can be expressed the conversion factor...
3.14 mols HCl / 1 L HCl
The pH of a 4.7 x 10-9 M solution is ____.
8
The correct name of Na2CO3
Sodium carbonate
You put two substances into a test tube and it rapidly begins to cool in your hand. This reaction is ___thermic.
Endothermic
The strongest intermolecular force from the following is _____. London-Dispersion, H-bonding, Dipole-Dipole
H-Bonding
How many grams are in 30. mL of a 4.5 M NaCl solution?
7.9 g NaCl
Per Bronsted-Lowry, an acid is a species that _____ a proton and a base is a species that _____ a proton.
The chemical formula for the ionic compound formed between barium and hydroxide
Ba(OH)2
Balance the following equation:
_C2H4 + _O2 ---> _CO2 + _H2O
1,3,2,2
1 mole of any gas at STP occupies ___L.
22.4 L
You need to make 100.0 mL of a dilute 0.500 M KNO3 solution, but only have 8.00 M KNO3 stock solution. How many mLs of stock solution should you use?
6.25 mL of stock solution
Write a balanced equation for the Acid-Base Neutralization of:
HNO3 with Ba(OH)2
2 HNO3 + Ba(OH)2 --> Ba(NO3)2 + 2 H2O
The Lewis structure for the cyanide polyatomic ion (CN-)
Kayla will check your drawing since she won't pay for premium Jeopardy Labs to insert a pic!
The ox. state of tin in SnBr4 is __.
The ox. state of Br in SnBr4 is __.
Sn=+4
Br=-1
A cylinder contains 900. mmHg of O2 at 20C. If the temp increases to 45C, the new pressure of the gas is __.
980. mmHg
Removing Br2 from the following reaction will shift the equilibrium ____.
CO + Br2 <--> COBr2
Left (towards reactants)
Write the chemical equation for NH3 acting as a base in water. Then identify conjugate acid-base pairs.
NH3 +H2O <--> NH4+ + OH-
H2O (acid) and OH-(conj. base)
NH3 (base) and NH4+ (conj. acid)
The full electron configuration of Sulfur is _____. The abbreviated (noble gas) electron configuration is _____.
1s22s22p63s23p4
[Ne]3s23p4
There are __ moles of aluminum in a sample with 1.65 x 1023 atoms of aluminum.
0.274 moles of aluminum
What is the volume in liters of 1.45 mols of N2 gas at 298K and 3.995 atm?
8.88 L
The equilibrium constant expression (K) for the reaction below is _____.
N2 + 3H2 <--> 2 NH3
Kayla will write it on the board!
CaCl2 + 2AgNO3 → 2AgCl + Ca(NO3)2
How many moles of AgCl are made from 0.557 L of 0.235 M CaCl2 ?
0.262 mols