Solubility Rules
Of NaOH, KOH, Mg(OH)2, NH4OH, Ca(OH)2, Sr(OH)2, Ba(OH)2. Which one is not soluble?
Mg(OH)2
What is the oxidation state of each element in CaH2
H- 1-
In biology an insectivore; in chemistry a measuring unit of very small things
A mole
What is the shape of a molecule where the central atom has four bonding areas and no lone pair electrons?
tetrahedral
The only two metal elements that are not silver.
copper and gold
NaOH, Fe2S3, MgSO4. Which one is insoluble?
Fe2S3
What is the oxidation state of each element in SF6
S= 6+
F= 1-
A hollow,spherical carbon molecule is called a buckyball or buckminster fullerine and is named for this non-chemist
Buckminster Fuller
What are the bond angles for a tetrahedral molecule?
109.5
What is the rarest naturally occurring element?
Astatine
PbCl2, Ba(NO3)2, MgCO3. Which one is soluble?
*DOUBLE JEOPARDY*
Ba(NO3)2
What is the oxidation number of each element in PCl4+
P= 5+
Cl- 1-
Codeine, methadone, and demerol are all these: a word derived from the name of the drug they come from or mimic
opiates
What is the shape of a water molecule?
bent
One inch of rain is equal to _____ inches of snow.
10
Li, Na, K, Rb, Cs. What do these elements have in common?
They are always soluble.
In this reaction what is being oxidized and what is being reduced?
2 Mg + O2 --> 2 MgO
Mg is oxidized
O is reduced
Melvin Calvin won a 1961 Nobel Prize for mapping the chemical reactions of this plant process
photosynthesis
What is the hybridization of the central atom of a water molecule?
sp3
What compound makes mars red?
iron oxide (rust)
BaSO4, PbSO4, Ag2SO4, and SrSO4. What does this group of compounds all have in common?
All are insoluble.
When Hydrogen is oxidized what species is produced?
H+
Women process alcohol more slowly than men because their stomachs have less ADH: one of these catalysts.
Enzymes
What is the hybridization of the central atom in any trigonal planar molecule?
sp2
What compound is dry ice?
carbon dioxide