Periodic Table
Types of Reactions and Balancing
Naming and Writing Formulas
Gas Laws and Density
Solutions
100
List the following information for BROMINE: # of protons,# of neutrons, and # electrons(in the neutral atom)
35, 45, 35
100
Label the type of reaction and balance: FeCl3 + H3N --> FeN + HCl
Double Replacement; Coefficients=1, 1, 1, 3
100
Name the covalent compound: SF6
Sulfur hexafluoride
100
What is the density of an object that has a mass of 46 grams and a volume of 25 cm3?
Density = m/v; D=1.84 g/cm3
100
In which of the following will sugar be hardest to dissolve? a) hot tea, b) warm milk, c) hot coffee, d) iced tea
d) iced tea
200
What do you do to determine the number of neutrons in an atom?
Atomic mass - atomic number = # of neutrons
200
Label the type of reaction and balance: MgO --> Mg + O2
decomposition; 2, 2, 1
200
Name the ionic compound: Mg3N2
Magnesium nitride
200
Which gas law compares pressure and volume? Write the mathematical formula.
Boyles' Law; P1V1 = P2V2
200
When two liquids are mixed together and a solid substance forms, that substance is called a(n) ______________.
Precipitate
300
1) What group is sodium located in? 2) What is the charge on a sodium ion?
1) 1 2) +1
300
Label the type of reaction and balance: NaBr + Cl2 --> NaCl + Br2
Single replacement; 2, 1, 2, 1
300
Write the covalent formula: Silicon tetrafluoride
SiF4
300
Which law compares temperature and volume? Write the mathematical formula.
Charles' Law. V1/T1 = V2/T2
300
Acids turn litmus paper _____. Bases turn litmus paper _____.
Acid = red; bases = blue
400
1) What group is Barium in? 2) How many valence electrons does Barium have? 3) What is the charge on a stable Barium ion?
1) 2 2) 2 3) +2
400
Label the type of reaction and balance: CaF2 + Mg3N2 --> Ca3N2 + MgF2
Double Replacement; 3, 1, 1, 3
400
Write the ionic formula: Potassium sulfide
K2S
400
If a gas has a pressure of 10 atm and a volume of 100 mL and the pressure is changed to 20 atm, what will the new volume be?
V = 50 mL
400
1) What ions do acids produce in solution? 2) What ions do bases produce in solution?
1) Hydronium (H3O+) or hydrogen ions (H+) 2) Hydroxide ions (OH-)
500
1) What group is chlorine in? 2) How many valence electrons does a chlorine atom have? 3) What is the charge on a chlorine ion? 4) How many total electrons are in the chlorine ion?
1) 17 2) 7 3) -1 4) 18
500
Label the type of reaction and balance: Sr3P2 + Li2O --> SrO + Li3P
Double replacement; 1, 3, 3, 2
500
Label ionic OR covalent, then correctly write the formula: Aluminum chloride
IONIC (there is a metal present) AlCl3
500
If a gas at 15 K has a volume of 70 mL is heated to 30 K, what will the new volume be? Identify which law is in effect in this example.
V2 = 140 mL - Charles' Law
500
The solubility of NaCl is 36 grams in 100 mL of water. Which of the following saltwater solutions is SUPERSATURATED? a) 18.5 g/50mL b) 25 g/90mL c) 5.0 g/ 15mL d) 43.5 g / 125 mL
a) 18.5 g / 50 mL
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