Chem. Exam 2 study guide
What is the electron configuration of the magnesium ion after the reaction?
1s^2; 2s^2; 2p^6
What is the electron configuration of the chlorine atom before the reaction?
1s^2; 2s^2; 2p^6; 3s^2; 3p^5
What is the electron configuration of the chlorine atom after the reaction?
1s^2; 2s^2; 2p^6; 3s^2; 3p^6
Explain how you can use an activity series to determine whether a single replacement reaction will occur.
A more active element can replace a less active element, but the opposite will not happen
What is the formula for silver nitrate?
AgNO3
What is the name of the following compound NH4CN?
Ammonium Cyanide
Explain the difference between the Arrhenius vs Bronsted- Lowry models of acids/bases?
Arrhenius: acid= H+ donor Base= OH- donor Bronsted-Lowry: aside= H+ donor Base= H+ acceptor
Propane is a common household fuel. When burned, water and carbon dioxide are produced.
Combustion
Steel wool burns, forming and iron oxide
Combustion
What is the formula for Cesium phosphide tetrahydrate?
Cs3P=4H2O
When an electric current is passed through molten potassium bromide, potassium and bromine form.
Double replacement
What is the difference between the end point and the equivalence point n a titration?
Equivalence point is when [H+]=[OH-] + pH=7 End point is where you stop titration, just past equivalence point, closer is better but difficult, indicator Won't change until you pass the equivalence point
How would you know that a solution has been over titrated?
Indication would be very bright color
What is the name of the following compound Mg(C2H3O2)2?
Magnesium Acetate
When a magnesium atom reacts with a chlorine atom, what happens to the atoms:?
Mg loses 2^e- —> Mg^2+ = MgCl^2 Cl gains 1e- —> Cl- =MgCl^2
Lime is added to acid water in a lake. Water and salt formed.
Neutralization
What is the formula for platinum oxalate?
Pt2(C2O4)3
Explain the difference between strong/weak acids/ bases.
Strong acids= 100% ionization, full conversion Strong bases= 100% dissociation, full conversion Weak acids/ bases= partial ionization, equilibrium driven
What is the name of the following compound TiPO4=6H20?
Titanium phosphate hexahydrate
What is the name of the following compound V2(CrO4)5?
Vanadium Chromate
HBrO3
bromic acid
HBrO2
bromous acid
HBrO
hypobromous acid
HBrO4
perbromic acid
H3PO4
phosphoric acid
Chlorine gas is bubbled through a calcium bromide solution. The solution turns brown, the color of bromine.
single replacement
H2SO3
sulfurous acid
Aluminum lawn furniture becomes coated with a layer of aluminum oxide when it sits out in the air.
synthesis
What is the electron configuration of the magnesium atom before the reaction?
1s^2; 2s^2; 2p^6