substance that produces H+ or the hydronium when placed in water.
100
What is a base?
A substance that produces hydroxide ions when added to water.
100
What is a strong electrolyte?
Dissolved ionic compound.
100
Do solutions have to be liquid?
NO! Tires are a solution.
100
What is hydroxide?
OH-
200
Do acids chemically react with the water, or just dissolve?
The acid reacts with the H2O to form the hydronium ion.
200
What are the criteria for a strong base?
a soluble metal hydroxide. Group 1 metals, heavy group 2 metal.
200
What is a weak electrolyte?
Insoluble/Slightly soluble ionic compounds.
200
What is a colloid. Give an example.
A mixture that appears homogeneous but at the molecular level is heterogeneous.
200
What is hydronium?
H3O+
300
Name the strong acids, using the molecular formulas.
HCl, HBr, HI, HClO4, H2SO4, HNO3
300
What kind of electrolytes are bases?
Strong bases are strong electrolytes. Weak bases are weak electrolytes.
300
What kind of electrolytes are molecular compounds?
Non electrolytes.
300
Liquids with a low vapor pressure have a _____ boiling point. Liquids with a low vapor pressure have a _____ intermolecular forces and ____ enthalpy of vaporization.
High, strong, high
300
What is nitrate? Nitrite?
NO3-
NO2-
400
How do you tell from the formula if something is an acid?
If it starts with an H, OR if it has a carboxylic acid group- COOH.
400
What are three examples of strong bases? Do strong bases have a chemical reaction in water? Why or why not?
KOH, LiOH, Sr(OH)2
No, they do not react with the water, they become ions in the water.
400
H2CO3 is what kind of electrolyte? Why?
A weak electrolyte, because it is a weak acid.
400
Normal boiling point occurs at what pressure?
1 atm.
400
What is permanganate?
MnO4 -
500
Write out the reaction of perchloric acid with water.
HClO4+H2O= H3O+ + ClO4-
500
Draw the equation of Rubidium hydroxide with water.
RbOH= Rb+ + OH-
500
Are bases undergoing equilibrium reactions?
Depends. Strong bases ionize completely. Weak bases are undergoing equilibrium reactions because they do not ionize completely.
500
What is a major component of hard water we talked about in class? Is this compound a strong or weak electrolyte? Draw the formula of this compound with water.
Calcium carbonate is a weak electrolyte. CaCO3(s)=Ca2+ + (CO3)2-
500
What is thyiocyanate? What is hydrogen sulfate? Hydrogen sulfite?