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• Answer 50 questions in 15 minutes.
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• Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. An oxidation-reduction rxn that occurs spontaneously has what kind of E^o for the cell?
Positive
Polar
That of static friction; there is a net accelerating force on the block once it starts to slide
Helium; 4


2. F in the Young's modulus equation can also equal what? What is E?

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3. The free energy change (G) must be negative when what?
H = negative and S = positive
Only temperature of the water bath
Ease of polarizability of the molecule and thus increasing molecular weight of mass
Neutrons; atomic number


4. When something is falling what is the force acting on it? Thus what would be the work done?

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5. Can a charged particle be detected by two anodes?

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6. Always remember that velocity has ____ and ____
Voltage
F =ma and F= qE
Find how many mol of Ni is available and CO3 available and see which one has lowest number and that's how many moles
Mag and direction


7. If something is very toxic to a human - what Ksp value should it have for it to be the safest?
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4
Energy
The lowest one
The particle's charge and the magnitude of the electric field


8. What is the amt of energy that a frictional force generates?
The nucleus gains a proton and no neutrons
Ease of polarizability of the molecule and thus increasing molecular weight of mass
The Ka or Kb that has an exponent closest to 7 because pKa + pKb = pKw and pKw = 14
Force times the distance over which the force acts


9. What is sublimation?
Density (gravitational constant) height
Going from solid to gas phase
A saturated solution in which the aqueous ions are in equilibrium with the solid
Polar


10. If you are told to find the maximum number of NiCo3 that can form how do you do that?

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11. The range of pH in which a color change takes place in a titration depends on what?
Energy
When HIn is turned into In- - which is dependent upon the pKa of the indicator
You look at how many electrons are needed to reduce one cmpd and that number will be put in front of that cmpd and you do the same thing that's oxidized as well: review #38 on test #11
It can also equal 'mg'; the compressive strength of a substance


12. What happens to the atomic number and atomic mass of an element that go under Beta decay or positron emission?
P = F(v) = mg(v -terminal)
Mass number stays the same but the atomic number increases
P = IV
Density (gravitational constant) height


13. How do you find moles of a substance when you are given faradays and electrons?
Faraday/electrons
The cmpd without the O cannot donate H's like alcohol can to form H bonds with water
The buoyant force on it; W = mg = pVg
The mass of an acid that yields one mole of H ions or the mass of a base that reacts with one mole of H ions


14. What is conserved in an inellastic collision?
Colligative: it depends on the number of solute molecules in a given volume of water
Momentum
The buoyant force on it; W = mg = pVg
Light is absorbed and re-emitted by the atomic structure of the optically dense medium


15. The total pressure of a solution is what? Give example.
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
Electrons from anode and battery
A constant force on a mass causes it to have a constant acceleration
A function of the total number of molecules; if there is one mol of CO2 for every 2 mol of H20 then H20 is 2/3 the total pressure


16. Half-sine wave shape is what kind of wavelength with regards to length?
It can also equal 'mg'; the compressive strength of a substance
H has a small atomic radius
L = wavelength/2 so L= (wavelength)(2)
Positron emission


17. Nuclear masses can be approximated from what?

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18. If the equation says that the E^o has (-) voltage when being reduced - but it is being oxidized in the problem - what does the voltage then become?
You look at how many electrons are needed to reduce one cmpd and that number will be put in front of that cmpd and you do the same thing that's oxidized as well: review #38 on test #11
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)
(+)
Momentum


19. If temperature arises during a mixture what can you conclude about the enthalpy?
That it is negative
-l to +l
It can absorb light that lets other electrons fill those orbitals
It is a rxn where you mix aqueous solutions of cations and anions and the ionic cmpds switch the ions with which they were paired


20. Regarding M(OH)2 and you have solubility (S) - what would the Ksp be?
Positron emission
A saturated solution in which the aqueous ions are in equilibrium with the solid
[S][2S]^2 = 4S^3
T = 2pi/angular velocity; v/r


21. In radioactive decay the atomic number (A) and mass number (Z) must what?
Polar
Force times the distance over which the force acts
Light is absorbed and re-emitted by the atomic structure of the optically dense medium
They must balance


22. The electrical force on a particle depends on what?

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23. If melting pt of a substance is 80 degrees - then what is the diff in time the substance melts when it is either placed in 100 degree test tube and 90 degree test tube?
You see how many moles of each are present and the one with the least is limiting; calculate how many grams/moles of a product will be made
It will take longer to melt if the water bath is only at 90 degrees rather than 100 degrees because at 100 degrees the temperature is hotter and thus it will melt faster than at 90 degrees
It's weight = mg; the work would be the weight times the distance fell
7 always!!!


24. What is the equation for a period (T)? What is the equation for angular velocity?
Ability to locate an event in space
T = 2pi/angular velocity; v/r
Alkali metals = first column
An odd number


25. What kind of charge is on Al?
Pascal (N*m^2)
Energy
3+
The mass of an acid that yields one mole of H ions or the mass of a base that reacts with one mole of H ions


26. The coefficient of static friction is the ratio of what?
The force along the board to the normal force
Neutrons; atomic number
W = F(displacement)
When all the external forces = zero


27. What happens to a negatively charged particle put between two parallel plates?
They must balance
It experiences a constant electric force of qE and will thus accelerate towards the positive plate
Zero
Pascal (N*m^2)


28. The force on an electrical charge is what?
F =ma and F= qE
Accelerated by a higher voltage between the cathode and anode
(density[p])(volume)
At an equal distance behind it as the object is in front of the mirror


29. If you have a decrease of pressure to which side of the equation is it equilibrium shifted towards? What about if you increase temperature?

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30. The temperature of a metal will not increase above its melting point until what?
You look at how many electrons are needed to reduce one cmpd and that number will be put in front of that cmpd and you do the same thing that's oxidized as well: review #38 on test #11
They do not differ
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
It will take longer to melt if the water bath is only at 90 degrees rather than 100 degrees because at 100 degrees the temperature is hotter and thus it will melt faster than at 90 degrees


31. The basicity constant Kb measures what?
The reaction between the base and water
No - it increases the speed at which the rxn reaches that equilibrium
How strong a base is
The mass number stays the number but the atomic number decreases by one - usually resulting in another element


32. If asked which electron configuration of an element is most stable which one do you choose?
The buoyant force on it; W = mg = pVg
Its twice that distance
The regular one
Their freq is smaller and energy is smaller; when wavelength is smaller freq is larger and higher energy = more dangerous


33. If you have an alcohol with OH on the end and then another cmpd with an O in the middle but no H - what is different between the bonds they can make with water?

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34. What color is above 656 nm?
T = (2h/g)^1/2; distance = vt
[S][2S]^2 = 4S^3
Their freq is smaller and energy is smaller; when wavelength is smaller freq is larger and higher energy = more dangerous
Red


35. What is the equation for pressure?
Density (gravitational constant) height
At an equal distance behind it as the object is in front of the mirror
6.02 x 10^23 ions/mol
A current; a magnetic field into a curved path; the charge and mass of the incoming particle and can be effectively used to distinguish different species of particles from one another


36. If both weight and bouyant force are dependent on g - that makes g independent of what?
Electrons from anode and battery
7 always!!!
Colligative: it depends on the number of solute molecules in a given volume of water
The volume of the ice cube or whatever it is


37. When you are trying to find the buyoancy force of water on a lead object what density do you use in the equation B = pVg? what volume?
The density of the water and volume of the lead object
One mole of electric charge
They are directly proportional
Neutrons; atomic number


38. The phase difference corresponding to a half wave is what? When do you get destructive interference?
Light is absorbed and re-emitted by the atomic structure of the optically dense medium
The nucleus gains a proton and no neutrons
A positron or electron; when atomic number goes up you know an electron has been emitted
180 degrees; when there is half a wave distance in phase between two waves


39. How should the period of a waveform be calculated?
From peak to peak
One that has more solute particles per liter of solution
The regular one
One mole of electric charge


40. What energy conversion describes best what takes place in a battery-powered resistive circuit?
They do not differ
[S][2S]^2 = 4S^3
Going from solid to gas phase
Battery starts off chemical and creates an electrical current which creates thermal energy in the resistors


41. What is the angular momentum quantum number (l)? It is the same as what? What does an S orbital appear to look like? What would it's (l) be?
It will be reduced the voltage produced by the resistor which means IR; E- IR
Quantum number that dictates the shape of an orbital; how many angular nodes are present? Spherical shape with no angular nodes thus you have 0 for angular momentum quantum number
Pascal (N*m^2)
1) Young's Modulus 2) Shear Modulus 3) Bulk Modulus


42. Isotopes have diff number of ______ but same what?
When electron falls from high energy to low energy level
Neutrons; atomic number
Accelerated by a higher voltage between the cathode and anode
Momentum


43. A plane mirror produces an image where?
P = IV
Mag and direction
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
At an equal distance behind it as the object is in front of the mirror


44. How do you find length of time something is in flight? How do you find distance it traveled?
T = (2h/g)^1/2; distance = vt
Ability to locate an event in space
Zero
How much energy is needed to raise one gram of a substance one degree celcius; it tells that you need more energy to increase temperature


45. If the source of sound and the listener are traveling side by side at the same speed - what will the change in freq heard by the listener be?
It experiences a constant electric force of qE and will thus accelerate towards the positive plate
0 Hz because they are traveling side by side at the same speed
Colligative: it depends on the number of solute molecules in a given volume of water
Faraday/electrons


46. What if the circuit elements are in series?
Red
F = GMm/r^2
Dipole moment; the attractive forces holding them together in liquid state are London or dispersion forces
The current is the same


47. Terminal voltage is provided to what?
External components of the circuit
400 to 700 nm
Neutrons; atomic number
The mass of an acid that yields one mole of H ions or the mass of a base that reacts with one mole of H ions


48. Neither N2 or O2 have a permanent what? What does this mean?
They must balance
One that has more solute particles per liter of solution
Dipole moment; the attractive forces holding them together in liquid state are London or dispersion forces
Negative


49. The coefficient of kinetic friction is always lower than what? Therefore what?
E = (kq)/r^2
They are directly proportional
The lowest whole number ratio of moles of each element in a mole of a cmpd
That of static friction; there is a net accelerating force on the block once it starts to slide


50. How do the final velocities differ if a sphere is dropped from a distance rather than rolled down an inclined plane?
They do not differ
The path is longer on the inclined plane so it will take object longer to reach the bottom
E = (kq)/r^2
Zero