Show:
Electron Configurations
Predict the Solubility/Conductivity
Ionic & Covalent Bonding/Properties
Covalent Bonding & Structural/Molecular Formulas
Gas Laws
100
What is the number of VALENCE electrons (electrons in highest-numbered main energy level, or the outermost energy level) when the electron configuration is: [Kr]5s24d105p2
5s2 +5p2 = 4
100
Which of the following do you predict will conduct electricity based on the formula and physical form? H2O(l)......Au(s)......CaCl2(s).....C10H22(l)
Au(s)
100
The elements on the right side of the periodic table (stair step)..and including Hydrogen...are considered which of the following:....ionic only....molecular covalent only....ionic and molecular covalent....network and molecular covalent
network and molecular covalent
100
State the HONC 1234 rule
H forms 1 bond, O forms 2 bonds, N forms 3 bonds and C forms 4 bonds.
100
-27 K equals __________________ degrees Celsius
-300 degrees celsius
200
What is the outermost subshell for S (sulfur)? You will be giving me a number and a letter........the number = period........and the letter = orbital
What is 3p
200
Which of these will not conduct electricity once they are dissolved? NaCl(s).........CsNO3(s).........C6H12O6(s)..........K2SO4(s)
C6H12O6(s)
200
True or False: The compound NaCl has properties very similar to those found in both: a sample of Na metal and Cl2 chlorine gas.
False: NaCl is table salt which we eat on our food. A sample of Na sodium metal explodes in water and Cl2 chlorine is a very poisonous green gas.
200
What is the Lewis Dot diagram for an atom of S sulfur? draw this on the board
S has a valence of 6
200
If gas pressure stays constant, what happens to volume when temperature increases?
volume increases when temperature increases. proportional.
300
How many electrons can occupy a d subshell?
10
300
In lithium chloride, is lithium a metal or a nonmetal?
metal
300
How many valence electrons do atoms of B boron have?
3
300
What is the difference between a molecular formula and a structural formula
molecular formula shows the atoms and how they are bonded together....structural shows the arrangement 3D of the atoms in the compound
300
True or False. When air is heated, it expands and sinks.
False. Always remember...HOT AIR RISES.....The gas expands and density decreases which causes it to rise. Hotter air will always be near the ceiling...cooler air will always be near the floor. (Well..unless you are in outer space!)
400
What is the electron configuration for an element with atomic number 14?
1s22s22p63s23p2
400
In lithium chloride, is the chloride ion a metal or nonmetal
nonmetal
400
How many bonds does Oxygen form in a covalent compound?
2
400
How many electrons are shared in a single bond? double bond? triple bond?
2......4....6
400
At a pressure of 1.0 atm, the volume of a gas is 1 L. If temperature remains constant, what will the volume be if pressure is increased to 2 atm?
0.5 L
500
What element has the electron configuration of [Xe]6s2
Ba Barium
500
In aqueous form, lithium chloride will or will not conduct electricity?
Will conduct electricity
500
Match the property to each of the four types of compounds.........."hard but brittle, fracturing along planes"....."bendable and malleable"....."durable, rigid and difficult to break"........"relatively easy to separate into smaller pieces"..................METALs, NETWORK COVALENT, IONIC, MOLECULAR COVALENT
METALs "bendable and malleable"..... NETWORK COVALENT "durable, rigid and difficult to break"........ IONIC "hard but brittle, fracturing along planes".... MOLECULAR COVALENT "relatively easy to separate into smaller pieces"
500
Ethanol C2H6O dissolves in water. Does it conduct electricity?
no
500
At 32 Celsius, a gas in a cylinder with a piston has a volume of 5.32 L. What will be the volume at -32 Celsius if pressure is held constant?
4.38 L