Final Review - Mr Cowder's Chemistry Class最后审查——·考德的化学课 59页PPT

?
The group of elements with seven valence electrons…
Rows of the Periodic Table...
Groups of elements with similar chemical pro
Ionic compounds…
The most reactive n
0.2 M CaCl2
Molarity…
10g of sodium chloride dissolved to make a 1L solution.
What is an electrolyte?
Does KCl dissolve as ions or molecules?
Red litmus paper turns blue and phenolphthalein turns pink in this substance…
Emperical Formula…
16% Carbon
84% Sulfur
Percent to mass, Mass to moles, Divide by the least, Multiply till whole!!
Motion of gas molecules according to the KMT, Kinetic Molecular Theory.
Ba3(PO4)2
NaNO3
Indicators of a chemical reaction…
Combustion of butane, C4H10
C4H10 + O2 CO2+ H2O
_FeCl3 + _H2S _FeCl2 + _HCl + _S
Balancing Reactions…
observed on the bottom of the watch glass.
Stoichiometry!!
N2(g) + 3H2(g)2NH3(g)
If __ grams of hydrogen
reacts with excess nitrogen,
what volume of ammonia is
If an opened can of soda is left in the sun, how wouHale Waihona Puke d the mass change?
A piece of Iron is left outside causing it to rust. How does the mass change?
Types of reactions…
Iodine crystals are heated in a beaker with a watch glass covering the top. Purple fumes are observed and when the beaker is cooled, purple crystals are
of ammonia is produced?
_____g N2
1 mole N2 28 g N2
2 mole NH3 1 mole N2
17 g NH3 1 mole NH3
g NH3
Calculating % Error…
/ E-A / A
X 100 = % error
Theoretical yield is 13.92g of NaCl, and the student’s experimental yield is 12.00g of NaCl.
When a closed container of a gas is heated, why does the
pressure increase?
Draw a graph that represents the relationship between pressure and volume.
1s22s22p63s23p64s23d104p5
Which element is this?
Metal or Nonmetal?
Electron Configuration of the ion of this element? The formula of the compound if this element combined with hydrogen.
What is the pH of 0.01 M HC
pH = - Log [.o1]
Describe the pH scale.
If given several antacids, how could you determine which one is the best?
If a metal is melted, how would the mass change?
Isotopes…
Physical change…
Rutherford’s experiment showed that atoms are mostly…
Mass number…
Electron configuration…
ion Electron configuration of an
new volume of this gas? V1 V2
T1
T2
Charles’ Law
How do you know when a solution is unsaturated? Saturated?
What is the difference between a solute and a solvent?
The bond created between water molecules…
Atom inventory…
(NH4)2CO2
2 Nitrogen atoms
1 Carbon atom
8 Hydrogen atoms
2 Oxygen atoms
CuCl2
Naming Ionic compounds with Roman numerals…
The Lewis dot diagram for this compound?
The shape of this molecule?
Draw the Lewis dot structure for water.
Is it polar or nonpolar?
Draw the Lewis dot structure for Carbon tetrachloride. Is it polar or nonpolar?
What are the products of a neutralization reaction?
What volume of 2 M KOH is required to neutralize 100 mL of 5 M HCl?
MAVA = MBVB
Titrations…
pH equation…
NaHCO3 + HCl NaCl + H2O + CO2
How many molecules would 16g of methane (CH4) contain?
Molecules…
16 g CH4
1 mole CH4 16 g CH4
6.02 x 1023 molecules 1 mole CH4
谢谢！
produced?
_____g H2
1 mole H2 2 g H2
2 mole NH3 3 mole H2
22.4 L NH3 1 mole NH3
L NH3
Stoichiometry!!
N2(g) + 3H2(g)2NH3(g)
If __ grams of nitrogen reacts with excess hydrogen, what mass
Little Willy was no more; for what he thought was H20 was H2SO4.
The formula for Aluminum chloride…
Double replacement reactions…
Na3PO4 + Ba(NO3)2 ????
Final Review
Chem I
This instrument is used to accurately measure liquids in the laboratory…
What is the volume?
Calculating Density…
Calculating % by mass of hydrogen in water…
The element with the largest atomic radius…
Chemical bonding can involve…
Shape of methane, CH4
The bond between hydrogen and oxygen within a water molecule…
Draw a graph that represents a pure substance as it is being heated and changes from a solid to
a liquid.
1000 L of NO2 at a temperature of 400K is
cooled to 300K. What is the
Types of reactions…
Magnesium ribbon is burned in a bunsen burner flame.
Types of reactions…
Solutions of lead (II) nitrate and sodium iodide are combined in the same test tube and a solid precipitate forms.