Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Electrolyte
|
a subsdtance such as NaCl whose aqueous solutions contain ions
|
|
|
Nonelectrolyte
|
a substance such as C12H22O11 that does not form ions in solution
|
|
|
water is a...
|
very effective solvent for ionic compounds
|
|
|
when a molecular compound dissolves in water what happens?
|
the solution usually consists of intact molecules dispersed throughout the solution.
|
|
|
what does this result in?
|
most molecular compounds are nonelectrolytes.
|
|
|
Strong electrolytes
|
are those solutes that exist in solutions completely or nearly completely as ions.
|
|
|
weak electrolytes
|
are those solutes that exist in solution mostly in the form of molecules with only a small fraction in the form of ions.
|
|
|
what does a double arrow represent
|
the ionization of weak electrolytes
|
|
|
what does a single arrow represent
|
the ionization of strong electolytes
|
|
|
HCl(aq)-->H+(aq)+Cl-(aq)
what does the single arrow indicate |
that the H+ and Cl- ions have no tendency to recombine in water to form HCl molecules
|
|
|
soluble ionic compounds are what?
|
strong electrolytes
|
|
|
How do we identify ionic compounds?
|
as being composed of metals and nonmetals
|
|
|
How else do we identify ionic compounds?
|
compounds containing the ammonium ion NH4+ such as NH4Brand (NH4)2CO3
|
|
|
when do precipitation reactions occur
|
when certain pairs of oppositely charged ions attract each other so strongly that they form an insoluble ionic solid
|
|
|
precipitation reaction
|
reactions that result in the formation of an insoluble product
|
|
|
precipitate
|
is an insoluble solid formed by a reaction in solution
|
