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Unit 1 Review of Chemistry 219 (The Units)
Atomic and Molecular Weights
(DAJJ)
Reversible Reaction and Equilibrium
(The Hadrons)
The Periodical Table
(ROYGBIV)
100
Does each of the following describe a chemical or physical change? A spoonful of table salt dissolves in a glass of water
Physical change
100
This is the molecular weight of potassium dichromate.
What is 294.19? (Q#157)
100
Applying a stress to a system in equilibrium will cause the equilibrium to shift in a manner that will reduce the effect of the stress.
Le Chatelier's Principle
100
What is the group with the most active metals
Group IA
200
How many kilometers are in 85 millimeters
8*10^-5km
200
This is the definition of formula weight.
What is the sum of the atomic weights in the formula of a substance? (Q#155)
200
What is the Equilibrium equation for 4HCl + O2<=>2Cl2 + 2H2O?
[Cl2]^2 [H2O]^2 K= ________________ [HCl]^4 [02]
200
What is F, Cl, Br, I known as?
the halogens
300
What is the chemical formula for dichromate?
Cr2o7 2-
300
The number of atoms of carbon in one mole of ethyl alcohol, C2H5OH.
What is 1.204x10^24? (Q#175)
300
What is the percentage dissociation of PCl5 at 250 degrees and 2 atmospheres pressure?
68%
300
what is metalloids known as?
Alkaline earth metals
400
What is the molecular equation and net ionic equation of the reaction between calcium chloride and potassium carbonate?
CaCl2(aq) +K2CO3(aq)>>>CaCO3(s)+2KCl(aq) Molecular Equation Ca2+ + CO3 2- >>CaCO3(s) Net Ionic Equation
400
The number of gram-moles in 5 pounds of sugar, C12H22O11.
What is 6.63? (Q#168)
400
FINALS = PRESSURE INCREASE STUDYING = ANDREW'S CONCENTRATION [ ] INCREASES NO TIME TO EAT, LOSING WEIGHT= VOLUME DECREASES
IF Daniel and Andrew were treated as gases, the following would be the answer; *Pressure has no change *Andrew's increase in concentration shifts the equilibrium from right to left *Volume decrease has no change Given the equilibrium DANIEL<=>ANDREW how will the equilibrium shift as finals week approaches given the following factors:
500
Which of the following salts are soluble CuSo4, AgCl, CaCo3, BaSO4
CuSo4
500
One metric ton (1000 kg) of ocean water contains about 0.2 mg of dissolved gold. This is the number of atoms of gold in one gram of ocean water.
What is six hundred billion? (Q#177)
500
What is one mole of acetic acid and 2 moles of ethyl alcohol are mixed at room temp. How many moles of ethyl acetate (CH3COOC2H5) will be presented in the mixture at equilibrium?
0.85
500
what is an example of an acidic hydroxide?
Al(OH)3