Unit 1/Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
100
6.02 x 10^23 representative particles
a mole
100
The temperature of a gas is doubled while the pressure is held constant what happens to the volume of the gas?
Doubled
100
total number of protons and neutrons in nucleus of an atom
atomic mass
100
Highly reactive nonmetals with 7 outer electrons
The Halogens
100
What would the formula be for a compound of calcium and iodine? What would the name be?
CaI2, calcium iodide
200
How many grams are in 2.5 moles of NaCl?
146.1g
200
If a sample of gas has a pressure of 220 kPa with a volume of 250 mL, what will the pressure be if its volume is reduced to 150 mL?
P2 = 366.7 kPa
200
What is the difference between an isotope and an ion?
Isotopes have different numbers of neutrons (different mass), while ions have different numbers of electrons (different charge)
200
Based on the Periodic Table of Elements, sodium and sulfur are in the same ___________
What is period
200
Why can't you balance the charges between nitrogen and oxygen to be a neutral ionic compound?
They both have negative charges. To form an ionic compound you must have an anion and a cation.
300
Use dimensional analysis to convert 130 inches to meters. (1 yard = 0.9144 meter)
3.3 meters
300
If I start with 30.0 mL at 20.0 Celsius and heat it to 45.0 Celsius, what would be the new volume. (Pressure is constant)
32.6 mL
300
Draw a Nitrogen atom with a -3 charge
Should have : 7 protons and 7 neutrons in the middle, 10 electrons around (2 first ring, 8 second ring)
300
This is the number of valence electrons oxygen has
What is 6?
300
Draw the lewis dot structure for PH3
400
How many atoms are in 3.5 moles of Al?
2.1 x 1024 atoms Al
400
A constant volume of oxygen is heated from 100°C to 185°C. The initial pressure is 4.1 atm. What is the final pressure?
5.03 atm
400
How many of each particle would Mg-26 have?
Protons:12
Neutrons:14
Electrons:12
400
Which Group is not reactive and explain why:
The Noble Gases, Group 8, is unreactive because they have a full shell.
400
How would you draw the lewis dot structure for OF2. What would you name it?
Oxygen Difluoride
500
Number of atoms in 25.0 grams of calcium.
3.76 x 1023 atoms
500
At what temperature in Celsius, does a 1.21 mole sample of argon gas fill a container of 4.56L at 253 kPa?
-159 degrees Celsius
500
Identify the element and give the overall charge for an element with 15 protons, 16 neutrons and 18 electrons.
Phosphorus, -3
500
Describe as many trends on the periodic table as you can...
Atomic mass increases L to R and down
Atomic radius decreases L to R and increases down
Valence electrons increase L to R and stay the same within columns
Ionization and Electronegative increase L to R and decrease down
500
Identify the following as covalent or ionic. Then name them.
a. CH4
b. NaCl
c. NH4I
d. N2Cl3
e. Mg(CN)2
a. CH4 covalent, carbon tetrahydride
b. NaCl ionic, sodium chloride
c. NH4I ionic, ammonium iodide
d. N2Cl3 covalent, dinitrogen trichloride
e. Mg(CN)2 ionic , magnesium cyanide