Unit 1: Atomic Mass
Unit 2: Gram/Liter Conversions
Unit 2: Gram/Liter Conversions
Unit 3:Lewis Dots/ Electron Configuration
Unit 4: Naming/Writing Compounds
Unit 4: Naming/Writing Compounds
Unit 5: Empirical & Molecular Formulas
Unit 6: Types of Reactions
Unit 6: Types of Reactions
Unit 6: Balancing Reactions
Unit 7: Percent Yield & Limiting Reagents
Unit 7: Percent Yield & Limiting Reagents
Unit 7: Mole Ratio & Stoichiometry
Unit 8: Solubility & Molarity
Unit 8: Solubility & Molarity
100
The most abundant isotope for Nitrogen is:
What is Nitrogen-14
100
The ground state electron configuration for Lithium (Li) is:
What is 1s2 2s1
100
What is the molar mass of Cu(OH)2? (round to hundredths place and include units)
What is 97.56 grams/mol
100
Use the equation below to determine what is incorrect:
Ti + C + 2Cl2 ---> TiCl + C.
This equation is not correct because –
A. the titanium atoms are not equal on both sides of the equation.
B. there are not enough chlorine atoms on the product side of the equation.
C. the carbon atoms are equal on both sides of the equation.
D. the right side of the equation should have a greater number of atoms than the left side.
What is B. there are not enough chlorine atoms on the product side of the equation.
100
Give an example of a solute and a solvent.
What is an example of a solute is _(kool-aid powder_______(any material that is dissolved into solvent. What is _(water)____(the dissolving medium)
200
How many liters are in 5.9 moles of Helium at STP?
a. 0.263 L
b. 132.16 L
c. 23.6 L
d. 33.04 L
What is B. 132.16 L
200
Which of the following is a correct interpretation of the electron configuration 2p4?
a. On the p energy level, there are 4 electrons in the 2nd-sublevel.
b. On the p energy level, there are 2 electrons in the 4th-sublevel.
c. On the second energy level, there are 2 electrons in the 4th sublevel.
d. On the second energy level, there are 4 electrons in the p-sublevel.
d. On the second energy level, there are 4 electrons in the p-sublevel.
200
What is the empirical formula of a compound composed of 43.7 g of phosphorous and 112.8 g of oxygen?
a. P5O
b. PO5
c. P2O10
d. PO2
What is b. PO5
200
If Robin conducted an experiment and was expecting to produce 45 grams of Iron, but only produced 30 grams of Iron, what would be the percent yield?
What is 67%
200
Explain the difference between soluble and insoluble.
What is soluble is a compound that will dissolve in water while insoluble is a compound that will not dissolve in water.
300
An element consists of two isotopes. The abundance of one isotope is 95.72% and its atomic mass if 114.9041 amu. The atomic mass of the second isotope if 112.9043 amu at 4.28%. The average atomic mass of the element is:
F. 113.9 amu
G. 113.0 amu
H. 112.9 amu
J. 114.8 amu
What is J. 114.8?
300
When writing ionic compounds, what type of element do you write first in a chemical name? Select all that apply.
a. Cation
b. Anion
c. Metal
d. Nonmetal
What is a Cation and Metal
300
Determine the percent oxygen by mass in AlPO4
A. 0.52
B. 52%
C. 0.13
D. 13%
What is 52%
300
Which is the best definition of a limiting reactant?
A. A limiting reactant is the reactant which is consumed first in a reaction.
B. A limiting reactant is the reactant with the greatest number of particles.
C. A limiting reactant is the reactant which is consumed last in a reaction
D. A limiting reactant is the reactant with the least number of particles.
What is A. A limiting reactant is the reactant which is consumed first in a reaction.
300
84 g of CrSO4 is dissolved in 0.95 L of water. What is the concentration of this solution in molarity?
(Include your units and round to the appropriate number of significant digits.)
What is 0.60 M
400
Name: Isotope-35 Isotope - 36
AMU: 35.00 amu 36.00 amu
Percent Abundance: 63.00% 37.00%
The atomic mass of the isotopes in the above information is:
(Round to the hundredths and don't forget units! (two numbers after the decimal)
The atomic mass is 35.37 amu.
400
What sublevel(s) can possibly be found in an element with n=2 (in the first row of the periodic table)?
a. s
b. s and p
c. s, p, and d
d. s, p, d, and f
What is B. s and p
400
What would the products of this reaction be? (Hint: Use the activity series chart)
Mg + CaS -> ?
a. No reaction
b. Ca + MgS
c. S + MgCa
d. Mg + CaS
What is no reaction
400
List the steps to balance a chemical equation.
What is Balancing Chemical Equations Steps
1)Draw a T-chart under the arrow of the equation.
2)List the elements for both the reactants and products.
3)Count the number of each element on both sides using the subscripts.
4)Find an element that occurs only in one substance on both sides.
5)Multiply both sides by a number (does not have to be the same) that will have each side EQUAL the SAME TOTAL.
6)Box the number and copy that number as the COEFFICIENT.
7)Draw arrows to distribute coefficients to other elements if applicable.
8)Continue to balance.
400
What would be the ratio of potassium chloride to potassium sulfide in the following unbalanced reaction after the reaction is balanced?
KCl + S → K2S + Cl2
What is 2:1
500
Record answer with correct significant figures and don’t forget UNITS.
- How many liters are in 42 grams of sulfur?
What is 29 L
500
The following compound is shown below:
MgO
What will the formula name be for this compound?
a. Magnesium Oxygenide
b. Magnesium Oxygen
c. Oxide Magnesium
d. Magnesium Oxide
What is d. Magnesium Oxide
500
Explain the difference between single replacement and double replacement reactions.
What is in a single replacement reaction one element is being displaced from a compound by another element. A + BC → AC + B
In a double replacement reaction, two compounds exchange bonds or ions in order to form different compounds. AB + CD → AD + CB
500
Balance the following reaction:
B2Br6 + HNO3 ----> B(NO3)3 + HBr
What is
1 B2Br6 + 6 HNO3 ----> 2 B(NO3)3 + 6 HBr
500
N2 + 3 H2 → 2 NH3
If 7.00 moles of nitrogen react, how many grams of ammonia gas will be produced? Include units and round your answer to the correct number of significant digits.
What is 238 grams