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Chapter 13
Notes and Study questions
15
Chemistry
10th Grade
03/12/2012

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Term
The separation of ions that occurs when an ionic compound dissolves is ___________
Definition
Dissociation
Term
Name the 6 general solubility rules:
Definition
  • Na, K, ammonium compounds are soluble in water
  • Nitrates, acetates, and chlorates are soluble
  • Most chlorides are soluble except those of Ag, Mercury(I), and lead. Lead(II) chloride is soluble in hot water
  • Most sulfates are soluble except those of Ba, Sr, Pb, Ca, Hg
  • Most carbonates, phosphates and silicates are insoluble, except theose of Na, K and ammonium
  • Most sulfides are insoluble, except those of Ca, Sr, Na, K and ammonium
Term
Can you write Dissociation equations for insoluble compounds?
Definition
no
Term
If the mixing tesults in a combo of ions that forms an insoluble compound, a _______-_____ rxn and ___________ will occur
Definition

Double displacement

precipitation

Term
When does precipitation occur?
Definition
when the (inner) attraction b/w ions is greater than the attraction b/w the ions and their surrounding water molecules
Term
Net ionic equation:
Definition
includes only those cmpnds and ions that undergo a chem change in a rxn in an (aq) solution
Term

spectator ions take a part in the chemical rxn and are not found in the solution(both b4 and after rxn).

T or F

Definition

F

Dont take part and found in both b4 and after rxn

Term

Usually the molecular compounds that form ions in solutions are:

a)non-polar

b)Polar

c)neutral

Definition
b
Term
The process in which ions are formed form solute molecules by the action of the solvent is called:
Definition
Ionization
Term
Explain the process of the formation of the hydronium ion.
Definition
When a molecular compound contains a H atom bonded by polar cocalent bond, the compounds ionize, releasing the H+...making it attract other molecules or ions
Term
What are the Hydrogen Halids?
Definition

a

all molemolecular compounds w/ single polar-covalent bonds.

Term
What three things does all Hydrogen halides have?
Definition

All are:

gasses

very soluble in water

electrolytes

Term
The strength in which substances conduct electric current is or is not related to their ability to form ions in solution
Definition
is
Term

A _____ electrolyte is any compound whose dilute aqueous solutions conduct electricity well.

Why?

Definition

Strong

Why? b/c the presence of all/almost all of the dissolved compound in the form of ions

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