Instructions:

• Answer 50 questions in 15 minutes.
• If you are not ready to take this test, you can study here.
• Match each statement with the correct term.
• Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. What is the equation for work done?
The cross-sectional area through which the fluid flows
W = F(displacement)
Their freq is smaller and energy is smaller; when wavelength is smaller freq is larger and higher energy = more dangerous
T = (2h/g)^1/2; distance = vt


2. The volume of an object is equal to water?
Liquid displaced by that object
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 reaction between the base and water
Colligative; the number of solute particles present


3. When does red litmus paper turn blue?
In the presence of a base
That they are catalysts in the rxn because they react with the substrate and are reformed
Gravity
[S][2S]^2 = 4S^3


4. Is the work done by air resistance - positive or negative?
Negative
180 degrees; when there is half a wave distance in phase between two waves
External components of the circuit
C: series = 1/C + 1/C = 1/C; parallel = C + C = C R: series: R+R = R; parallel = 1/R + 1/R = 1/R


5. Why would a solution with unfilled orbitals be responsible for turning a solution a certian color?
Momentum
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
It can absorb light that lets other electrons fill those orbitals
Add them together


6. A nearsighted person has what type of focal length? Thus what do we do to correct this?
H = negative and S = positive
Shorter than it should be so rays from a distant object form in front of retina; use divergent lens
External components of the circuit
3+


7. In radioactive decay the atomic number (A) and mass number (Z) must what?
The nucleus gains a proton and no neutrons
The lowest amt than any of the other cmpds with a higher carbon to oxygen ratio
No - it increases the speed at which the rxn reaches that equilibrium
They must balance


8. 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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9. Charged particles in motion constitute what? Freely moving charges are deflected by what? The curved path depends on what?
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
That of static friction; there is a net accelerating force on the block once it starts to slide
Colligative; the number of solute particles present
They increase because you hear a lower frequency


10. If asked which electron configuration of an element is most stable which one do you choose?
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
The cross-sectional area through which the fluid flows
The regular one
Alkali metals = first column


11. What is the magnetic quantum number?
E = (kq)/r^2
The mass number stays the number but the atomic number decreases by one - usually resulting in another element
Neutrons; atomic number
-l to +l


12. In a rxn - how do you figure out which atom has the highest electron affinity?
Positron because this is known as positron decay/electron capture
Wavelength: (change in y)/(y) = v/c frequency: (change in f)/(f) = -v/c
How strong a base is
Look at the reactants and see which atom is being reduced - since it accepts the electron readily and is reduced we can assume it has the highest electron affinity


13. If something is very toxic to a human - what Ksp value should it have for it to be the safest?
The lowest one
F = GMm/r^2
A positron or electron; when atomic number goes up you know an electron has been emitted
Light is absorbed and re-emitted by the atomic structure of the optically dense medium


14. Beta decay is the emission of what? How do you know what it is the emission of?
A salt and water
-l to +l
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
A positron or electron; when atomic number goes up you know an electron has been emitted


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

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16. Considering the answer in the last slide - what kind of a solution would have a lower freezing pt?
Polar
One that has more solute particles per liter of solution
Liquid displaced by that object
V/m or N/C


17. What are the three separate module for tensile stress - shear stress - and compression/expansion?

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18. Friction is caused by what?
Accelerated by a higher voltage between the cathode and anode
Attractive molecular forces acting between material surfaces in contact
P = IV
A saturated solution in which the aqueous ions are in equilibrium with the solid


19. If any species is gotten rid of when combining two equations of chemical rxns together what can you conclude about those species?
+/- 1/2
That they are catalysts in the rxn because they react with the substrate and are reformed
NO; reduction-oxidation
The nucleus gains a proton and no neutrons


20. What is different between an inclined plane and free fall?
The path is longer on the inclined plane so it will take object longer to reach the bottom
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4
The reaction between the base and water
W = F(displacement)


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

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22. What is the equation for a period (T)? What is the equation for angular velocity?
Ability to locate an event in space
F = GMm/r^2
T = 2pi/angular velocity; v/r
Cathode; anode


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

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24. How do you find 'g' from Newton's law of gravity?
Well F = GmM/R^2 and force = mg so equating those together g = GM/R^2
It's weight = mg; the work would be the weight times the distance fell
You look at what is being oxidized and reduced in the problem
Density (gravitational constant) height


25. How do you find length of time something is in flight? How do you find distance it traveled?
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)
T = (2h/g)^1/2; distance = vt
It minimizes the reabsorption of the light because the light must exit the scintillator to reach the photomultiplier where it is converted to an electrical pulse
It can also equal 'mg'; the compressive strength of a substance


26. The freezing point of an aqueous solution is what kind of property? What does this mean?
H = negative and S = positive
Mag and direction
P = IV
Colligative: it depends on the number of solute molecules in a given volume of water


27. Always remember that velocity has ____ and ____
Dipole moment; the attractive forces holding them together in liquid state are London or dispersion forces
The particle's charge and the magnitude of the electric field
B = pVg; density
Mag and direction


28. An alpha particle can also be assumed to be what element? What is the mass number of Helium?
Faraday/electrons
Going from solid to gas phase
A positron or electron; when atomic number goes up you know an electron has been emitted
Helium; 4


29. Melting occurs at what type of temperature? Why?
Vertically; perpendicular to all surfaces
Constant to overcome the heat of fusion (solid to liquid state)
[A]^a[B]^b
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)


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

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31. What is weight equal to?
Mg
Find how many mol of Ni is available and CO3 available and see which one has lowest number and that's how many moles
(+)
Look at how many times smaller the H concentration becomes with relation to rate law: if rate law says [H] is second order: ((10^-2)^2/(10^-1)^2 = 10^-2 and then times that answer by the original rate


32. In PV=nRT - if temp increases what will happen to volume?
The blood pressure in the leg is greater because the column between the arm and the leg has a hydrostatic pressure
It can also equal 'mg'; the compressive strength of a substance
H has a small atomic radius
It will increase as well because they are directly related - only if pressure is kept constant


33. What is the formula for the power supplied by a battery to accelerate an electron beam?
It's weight = mg; h
P = IV
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
The current is the same


34. What is usually conserved over oscillation periods?
Energy
Density (gravitational constant) height
That of static friction; there is a net accelerating force on the block once it starts to slide
Their freq is smaller and energy is smaller; when wavelength is smaller freq is larger and higher energy = more dangerous


35. Neither N2 or O2 have a permanent what? What does this mean?
The reaction between the base and water
Pascal (N*m^2)
Its momentum is zero because velocity is zero; zero because of conservation of momentum
Dipole moment; the attractive forces holding them together in liquid state are London or dispersion forces


36. 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?
Going from solid to gas phase
The reaction between the base and water
Its twice that distance
The density of the water and volume of the lead object


37. An oxidation-reduction rxn that occurs spontaneously has what kind of E^o for the cell?
The blood pressure in the leg is greater because the column between the arm and the leg has a hydrostatic pressure
When electron falls from high energy to low energy level
NO; reduction-oxidation
Positive


38. How should the period of a waveform be calculated?
Battery starts off chemical and creates an electrical current which creates thermal energy in the resistors
From peak to peak
Isolating an atom from minerals by decomposing the minerals with an electric current
When you have central atom with six ions on it


39. The concentration of OH and H30 ions are approximately equal at what pH?
Look at how many times smaller the H concentration becomes with relation to rate law: if rate law says [H] is second order: ((10^-2)^2/(10^-1)^2 = 10^-2 and then times that answer by the original rate
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)
7 always!!!
Electrons from anode and battery


40. If the standard potential for a rxn is negative when it is being reduced (thus a negative reduction potential) that means that the resulting atom has what?
Neutrons; atomic number
It has a positive oxidation potential so it is easily oxidized
One that has more solute particles per liter of solution
Attractive molecular forces acting between material surfaces in contact


41. if lead is successively preciptated as PbSO4 - PbI - and PbCO2 - which is less soluble than which? Thus which anions will be precipitated first?
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4
P = F(v) = mg(v -terminal)
L = wavelength/2 so L= (wavelength)(2)
The path is longer on the inclined plane so it will take object longer to reach the bottom


42. So if you have a voltage of 1/4V it will be reduced by what? Thus what will be the equation for the terminal voltage?
It will be reduced the voltage produced by the resistor which means IR; E- IR
A saturated solution in which the aqueous ions are in equilibrium with the solid
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
They increase because you hear a lower frequency


43. A floating ice cube implies that it's weight is balanced by what?
180 degrees; when there is half a wave distance in phase between two waves
Positron emission
The buoyant force on it; W = mg = pVg
It can also equal 'mg'; the compressive strength of a substance


44. Mechanical waves in a medium fxn to transport what?
Mag and direction
Energy
F = GMm/r^2
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


45. Beta decay is the same as what?
Pascal (N*m^2)
The cmpd without the O cannot donate H's like alcohol can to form H bonds with water
Positron emission
Their freq is smaller and energy is smaller; when wavelength is smaller freq is larger and higher energy = more dangerous


46. Light can be carried along a distance within a transparent material by means of what?
[A]^a[B]^b
Total internal reflection
The cmpd without the O cannot donate H's like alcohol can to form H bonds with water
It will increase as well because they are directly related - only if pressure is kept constant


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

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48. Young's modulus is a ________ for a material. What is it's ratio? What would a graph of it look like?
0 Hz because they are traveling side by side at the same speed
Constant; stress/strain = (F/A)/ (change in L/L) = straight line withe positive slope that stays constant
Positron emission
It can absorb light that lets other electrons fill those orbitals


49. When the source of a sound is flying away from you what happens to the wavelengths from peak to peak?
They increase because you hear a lower frequency
Yes because ionic zinc has oxidation of (2+) and Zn is easily oxidized so it will displace H and ZnCl2 will be formed
From peak to peak
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4


50. Kb is the equilibrium constant for what?
Add them together
The reaction between the base and water
L = wavelength/2 so L= (wavelength)(2)
The element's mass number