Chemical Bonding
Chemical Reactions
The Mole & Solutions
Stoichiometry
Miscellaneous
100
True or False: An ionic bond is usually between a nonmetal and a nonmetal.
False. An ionic bond is usually between a metal and a nonmetal or a polyatomic ion. A covalent bond is usually between a nonmetal and a nonmetal.
100
How many atoms of oxygen are in Al2(CO3)3?
9 atoms of oxygen
100
How many atoms are in 4.5 moles of C?
2.7 x 1024 atoms C
100
How many moles of oxygen are necessary to react completely with 3.4 moles of propane (C3H8)?
C3H8 + 5 O2 --> 3 CO2 + 4 H2O
17 mol O2
100
What is the name of SnO2?
tin (IV) oxide
200
What is the name of the compound SO2?
Sulfur dioxide
200
What are the reactants in the following chemical equation?
CH4 + O2 --> H2O + CO2
CH4 + O2
200
What is the molar mass of LiNO3?
68.944 g/mol LiNO3
200
What mass of N2 is produced from the decomposition of 102 g NaN3?
2 NaN3 --> 2 Na + 3 N2
65.9 g N2
200
Consider a single bond, a double bond, and a triple bond. List the bond types in order of decreasing bond strength.
triple, double, single
300
What is the chemical formula for copper (II) sulfate?
CuSO4
300
What type of reaction is the following reaction?
CaCO3 --> CaO + CO2
decomposition
300
How many formula units are in 89.3 g MgSO4?
4.47 x 1023 formula units MgSO4
300
50.0 g of Mg and 75.0 g of HCl react to form MgCl2 and H2. What is the limiting reactant?
Mg + 2 HCl --> MgCl2 + H2
HCl is the limiting reactant
300
An electronegativity difference equaling 0 would result in what type of covalent bond forming between two atoms?
nonpolar covalent bond
400
Draw the Lewis Dot Structure for NCl3
400
Balance the following skeleton equation:
FeS + O2 —> Fe2O3 + SO2
4 FeS + 7 O2 —> 2 Fe2O3 + 4 SO2
400
What is the molarity concentration of a solution containing 3.22 moles of NaCl in 0.520 L of water?
6.19 M NaCl
400
Determine the theoretical yield, in grams, of Al2O3 when 43.1 g of Al reacts with O2.
4 Al + 3 O2 --> 2 Al2O3
81.4 g Al2O3
400
What is the molecular geometry of a molecule made up of a total of 3 atoms that has 2 lone pairs of electrons and 2 shared pairs of electrons?
bent
500
What is the molecular geometry of a molecule with 1 lone pair of electrons and 3 bonds?
trigonal pyramidal
500
Predict the products of the following reaction:
AlF3 + I2 -->
No Reaction!
500
How much water must be added to 1.50 L of a 1.8 M CaCl2 solution to make a 0.10 M solution of CaCl2?
27 L
500
Calculate the percent yield of S2Cl2 if the theoretical yield is 98.3 g S2Cl2 and a student recovered 96.4 g S2Cl2 in the lab.
98.1% S2Cl2
500
How many moles of MgCO3 are required to form 3.00 L of 1.75 M MgCO3 solution?
5.25 mol MgCO3