Chemistry Theory. Flashcards
0
Q
Ionic Substance properties?
Empirically..
A
High melting point Ductility and malleability. Solid at room temp Cleave in flat lines Solubility. Conductive in solution.
1
Q
Ionic Substance properties?
Theoretically.
A
Always in solid state
Made of cations and anions
Cations and anions exhibit polar tendencies.
2
Q
Molecular Substance properties?
Theoretically.
A
Solid liquid and gass
Made of anions
3
Q
Molecular Substance properties?
Empirically.
A
Non-malleable. And non ductile.
Non conductive.
Not all are soluble.
4
Q
Oxygen ion?
A
2-
O
5
Q
Nitrogen ion.
A
-3
N
6
Q
A). A substance has these properties. -high melting point. -cleavage -conductive -soluble
A
Ionic.
7
Q
B). A substance has these properties. -low melting point -fall apart when hit -non-conductive -soluble
A
Molecular solid.
8
Q
What are evidence of Chemical Reaction?
A
Change in temperature Precipitate formed. New colors All substances used up New odor A gas is formed Electricity Sound Light.
9
Q
What is the law of conservative mass.
A
The number of atoms and the mass always stat the same.
