Misc. Questions
This term related to enthalpy describes a combustion. Energy is released into the surrounding world.
What is exothermic?
You have 30 mol of Na in a 2 M NaCl solution. This is the volume of the solution.
What is 15 L?
There are 5 moles of CaCl2 in front of you. This means there are ___ moles of chlorine.
What is 10?
This element is in the third period and has six valence electrons.
What is sulfur?
The two components or half-reactions that occur in a redox reaction. You must also define each component.
What are reduction and oxidation? Reduction is a loss of charge or a gain of electrons. Oxidation is a gain of charge or a loss of electrons.
Your mama so fat she stole the whole apple pie at Thanksgiving. This is most analogous to this type of bond.
What is an ionic bond?
The solid product of a chemical reactions between two aqueous reagents.
What is a precipitate?
You react oxygen with a hydrocarbon, but the hydrocarbon runs out before you use up all your oxygen. This is what we call reactants that run out first.
What is the limiting reactant?
The bond between oxygen and hydrogen within a molecule is this type of bond. Electrons are shared unevenly.
This is the oxidation state of carbon in CO2.
What is +4?
The Lewis structure of CO32- has multiple possible forms. This is the name of these alternate forms. Provide the number of said forms, too.
What are resonance structures? (There are three).
A solution with a pH of 3 is ____ times more acidic than a solution with a pH of 7.
What is 10,000?
What is C27H117?
In Lewis structures, the least electronegative element is placed here.
What is the center/central atom?
You add this to both sides to balance the number of oxygen atoms when working with redox equations.
What is water?
These two elements are electron poor, so sometimes they do not form a complete octet in a Lewis structure.
What are boron and beryllium?
The net ionic equation for the following reaction: NaBr + AgNO3 —> NaNO3 + AgBr
What is Ag+ + Br- —> AgBr?
You have 7 grams of nitrogen gas. This is the number of nitrogen gas MOLECULES that you have!
The molecular geometry when you have six bonds around the central atom without lone pairs.
What is octahedral?
The reducing agent in the following unbalanced equation: Fe + O2 —> Fe2O3
What is Fe?
Via gas evolution, mixing potassium carbonate with hydrochloric acid will yield these products.
Potassium chloride, water, and carbon dioxide.
What is the half equivalence point?
You react 8 moles of magnesium sulfide with 6 moles of ammonium chloride. How many moles of solid do you have in your reaction vessel afterward?
What are 5 moles? *Both of the products are soluble, but MgS is not, and you still have 5 moles left in excess*
The formal charge around N in a nitrite (NO2-) molecule.
What is 0?
The number of electrons exchanged in the following reaction: MnO4- + I- —> Mn2+ + I2
What are 10 electrons?