Electrons
What is the correct Lewis dot structure for Aluminum?
Al with three dots
The bonding type in which neutral atoms share electrons in overlapping orbitals is called?
Covalent bonding
Which of the following best describes this molecule?
H-C=C-H
Linear
Calculate the molar mass of magnesium acetate, Mg(C2H3O2)2.
142.41 g/mol
[Diagram]
What state of matter is this compound at 25 degrees C?
Liquid
How many Oxygen atoms are in the molecule Fe2(C2O4)3?
12
Name this compound: F4O7
Tetrafluorine Heptoxide
Which type of bond will be made between Calcium and Selenium?
Ionic
What is the mass of 1.12 x 1024 molecules of SO3?
149 g
[Diagram]
Which letter represents Condensation?
D
If two electrons occur in the same orbital, they must have opposite spins is a statement of who?
Hund's Rule
The bonding type in which electrons are gained or lost, and the subsequent charged particles are attracted due to differences in electrical charge is _____
Ionic compounds, metal-nonmetal
Draw a molecule of BH3.
H H -Trigonal Planar
B
H
CO2 + 2 KOH -> K2CO3 + H2O
How many moles of CO2 are needed to exactly react with 1.24 moles of KOH?
0.62 moles CO2
[Diagram]
At which temperature does melting occur?
Electrons fill the lowest energy configuration first is a statement of whose?
Aufbau principle
Which of the following is the correct way to write Aluminum Carbonate?
Al(CO3)3
Which type of bond is metallic as a solid?
Metallic bonds, metal-metal
MV = MV. What would be the concentration of HCl if we used 30 mL of a 0.5 M NaOH into 50 mL of the acid?
0.3 M
[Diagram]
If you start at 100 atm and -60 degrees Celcius, and the pressure changes to 1 atm, what phase change occurs?
Solid to a Liquid, Sublimation
What type of molecule would have the lowest melting point?
Anything Covalent, two non-metals
How many electrons are shared in the bond N=C?
4
Draw H2S as a molecule
. . . . - Bent molecule
S
H H
What is the correct formula for Potassium Nitrate?
KNO3
[Diagram]
What state of matter is located at 100 atm and 0 degrees Celcius?
Liquid