Nomenclature
Either name the following compounds or give the formula:
A) Mn3(PO4)2
b) Na2O
c) Potassium Permanganate
d) Iron (III) Oxide
A) Manganese (II) Phosphate
B) Sodium Oxide
C) KMnO4
D) Fe2O3
2 S (s) + 3 O2 (g) --> 2 SO3 (g)
if 6.3 g of S is reacted with 10.0 g of O2, which is the limiting reactant?
Sulfur
How many grams of hydrogen are in 24.0 grams of C6H6?
1.9 grams
Which of the following elements has the highest ionization energy: Mg, Ca, Sr, Ba
Mg
Either name the following compounds or give the formula:
a) dinitrogen tetroxide
b) chromium (II) hydroxide
c) Pb(SO4)2
Analysis of a 12.04-g sample of a liquid compound composed of carbon, hydrogen, and nitrogen showed that it contains 7.34 g C, 1.85 g H, and 2.85 g N. What is the percent composition of this compound?
C: 61.0%
H: 15.4%
N: 23.7%
Identify the following types of chemical reactions:
A) BaCl2 + H2SO4 --> BaSO4 + 2 HCl
B) 2 Cu + O2 --> 2 CuO
C) FeSO4 --> Fe + SO4
B) combination
C) decomposition
List the following elements in order of increasing size: S Si P Al
S, P, Si, Al
Write out the chemical reaction:
Zinc and lead (II) nitrate react to form zinc nitrate and lead
Zn + Pb(NO3)2 --> Zn(NO3)2 + Pb
CaCO3 (s) + 2 HCl --> CaCl2 (aq) + CO2 (g) + H2O (l)
68.1 g solid CaCO3 is mixed with 51.6 g HCl. How many grams of CO2 will be produced?
CaCO3- LR
29.9 g of CO2 produced
Propane burns in excess oxygen according to the following reaction
C3H8 + 5 O2 --> 3 CO2 + 4 H2O
How many moles of each product are formed from 3.85 mol of propane?
11.6 mol CO2
15.4 mol H2O
A) Write the full electron configuration for Copper (Cu)
B) Write the abbreviated electron configuration for Cadmium (Cd)
A) 1s22s22p63s23p64s23d9
B) [Kr] 5s24d10
Write and balance the chemical reaction:
Aluminum bromide and chlorine gas react to form aluminum chloride and bromine gas
2 AlBr3 + 3 Cl2 --> 2 AlCl3 + 3 Br2
A sample of a hydrocarbon was combusted producing 1.054 g of CO2 and 0.2168 g of H2O. What is the empirical formula for the hydrocarbon?
CH
Calculate the mass of silver bromide produced from 22.5 g of silver nitrate in the following reaction:
2 AgNO3 + MgBr2 --> 2 AgBr + Mg(NO3)2
24.9 g AgBr
Draw the full orbital diagram for Se
board
Write and balance the chemical reaction:
Sodium phosphate and calcium chloride react to form calcium phosphate and sodium chloride
2 Na3PO4 + 3 CaCl2 --> 6 NaCl + Ca3(PO4)2
What is the empirical and molecular formula for sucralose? The percent composition is 36.25% C, 4.82% H, 26.75% Cl and 32.19% O. The molar mass is 397.63 g/mole.
C12H19Cl3O8
When 400 grams of H2 are added to an excess amount of N2, 104 grams of NH3 are formed. Calculate the percent yield?
3 H2 + N2 --> 2 NH3
4.5%
How many kJ are produced when 50.0 g of oxygen reacts with excess H2(g)?
2 H2 + O2 --> 2 H2O + 572 kJ
894 kJ