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. If something is very toxic to a human - what Ksp value should it have for it to be the safest?
L = wavelength/2 so L= (wavelength)(2)
Neutrons; atomic number
The lowest one
Momentum


2. Why are bonds between H and another atom shorter compared to most?
The lowest amt than any of the other cmpds with a higher carbon to oxygen ratio
H has a small atomic radius
Density (gravitational constant) height
When electron falls from high energy to low energy level


3. If temperature arises during a mixture what can you conclude about the enthalpy?
Momentum
Sp^3
That it is negative
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


4. What is the equation for a period (T)? What is the equation for angular velocity?
When HIn is turned into In- - which is dependent upon the pKa of the indicator
Accelerated by a higher voltage between the cathode and anode
That of static friction; there is a net accelerating force on the block once it starts to slide
T = 2pi/angular velocity; v/r


5. The force on an electrical charge is what?
F =ma and F= qE
The part where it's straight almost up before it curves to plateau at new pH; it can tell you what indicator you could use to detect the equivalence point
T = 2pi/angular velocity; v/r
[S][2S]^2 = 4S^3


6. How do you balance redox rxns?

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7. The probability of an X-ray emission event at a given wavelength is measured by what?
Its intensity in the spectrum
Sp^3
No - it increases the speed at which the rxn reaches that equilibrium
The cross-sectional area through which the fluid flows


8. What is Avagadro's number regarding ions/mol?
A saturated solution in which the aqueous ions are in equilibrium with the solid
6.02 x 10^23 ions/mol
Mass per unit volume compared to water: so if mass is 15 g and displaces 5g of benzene the ratio of object to liquid mass is 15/5 = 3 and then times 3 by the specific gravity of benzene which is 0.7
Mag and direction


9. What type of acid and base would produce a pH closest to 7?
Half of the exponent
Total internal reflection
Strong acid and strong base/ weak acid and weak base
The element's mass number


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

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11. A pendulum moves under the influence of what?
That it is negative
C: series = 1/C + 1/C = 1/C; parallel = C + C = C R: series: R+R = R; parallel = 1/R + 1/R = 1/R
It's weight = mg; the work would be the weight times the distance fell
Gravity


12. How should the period of a waveform be calculated?
You should look for the two substances that appear to be equal in structure - with no structural differences (or as little as possible)
From peak to peak
[A]^a[B]^b
The cross-sectional area through which the fluid flows


13. As a balloon rises in a tank of water what happens to the temperature inside it? Why would this happen?
0 Hz because they are traveling side by side at the same speed
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
That it is negative
It decreases; the work done by the gas in expanding decreases its internal energy


14. 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?
It has a positive oxidation potential so it is easily oxidized
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
H has a small atomic radius
Their freq is smaller and energy is smaller; when wavelength is smaller freq is larger and higher energy = more dangerous


15. Mechanical waves in a medium fxn to transport what?
Energy
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)
In the presence of a base
Electrons from anode and battery


16. Why would a solution with unfilled orbitals be responsible for turning a solution a certian color?
Liquid displaced by that object
It can absorb light that lets other electrons fill those orbitals
At an equal distance behind it as the object is in front of the mirror
Helium; 4


17. The phase difference corresponding to a half wave is what? When do you get destructive interference?
Helium; 4
A constant force on a mass causes it to have a constant acceleration
180 degrees; when there is half a wave distance in phase between two waves
Their freq is smaller and energy is smaller; when wavelength is smaller freq is larger and higher energy = more dangerous


18. 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?
180 degrees; when there is half a wave distance in phase between two waves
Shorter than it should be so rays from a distant object form in front of retina; use divergent lens
That of static friction; there is a net accelerating force on the block once it starts to slide
0 Hz because they are traveling side by side at the same speed


19. Isotopes have diff number of ______ but same what?
At an equal distance behind it as the object is in front of the mirror
Neutrons; atomic number
3+
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4


20. What direction do gravity and bouyancy work? What direction does water pressure work?
T = 2pi/angular velocity; v/r
Ease of polarizability of the molecule and thus increasing molecular weight of mass
E = (kq)/r^2
Vertically; perpendicular to all surfaces


21. What is the formula for the power supplied by a battery to accelerate an electron beam?
In the presence of a base
L = wavelength/2 so L= (wavelength)(2)
P = IV
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


22. How do you find length of time something is in flight? How do you find distance it traveled?
They are directly proportional
The mass number stays the number but the atomic number decreases by one - usually resulting in another element
T = (2h/g)^1/2; distance = vt
When HIn is turned into In- - which is dependent upon the pKa of the indicator


23. When is a body in translational equilibrium?
The force along the board to the normal force
E = (kq)/r^2
When all the external forces = zero
[A]^a[B]^b


24. If you are given density and volume how do you find mass?
(density[p])(volume)
A saturated solution in which the aqueous ions are in equilibrium with the solid
Positron emission
3+


25. How do you find the equiv capacitance of capacitors in series and parallel? What about if you are trying to find equivalent resistance?
Attractive molecular forces acting between material surfaces in contact
C: series = 1/C + 1/C = 1/C; parallel = C + C = C R: series: R+R = R; parallel = 1/R + 1/R = 1/R
The mass number stays the number but the atomic number decreases by one - usually resulting in another element
A saturated solution in which the aqueous ions are in equilibrium with the solid


26. How do you find 'g' from Newton's law of gravity?
You look at what is being oxidized and reduced in the problem
1) Young's Modulus 2) Shear Modulus 3) Bulk Modulus
180 degrees; when there is half a wave distance in phase between two waves
Well F = GmM/R^2 and force = mg so equating those together g = GM/R^2


27. What is the spin projection quantum number?
F = GMm/r^2
Toward the side with more gaseous molecules; towards the side that doesn't give off as much heat (remember heat is given off when molecules are formed and thus (-) enthalpy)
+/- 1/2
Positron because this is known as positron decay/electron capture


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

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

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30. What if the circuit elements are in series?
They increase because you hear a lower frequency
The number of electrons emitted
The current is the same
When you have central atom with six ions on it


31. If you are given a table of substances and are told to find which two show effect of molecular weight on melting point alone - which two substances should you look for?
Positive
You should look for the two substances that appear to be equal in structure - with no structural differences (or as little as possible)
Zero
Voltage


32. What is conserved in an inellastic collision?
Vertically; perpendicular to all surfaces
Isolating an atom from minerals by decomposing the minerals with an electric current
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
Momentum


33. Is the work done by air resistance - positive or negative?
6.02 x 10^23 ions/mol
Negative
Only temperature of the water bath
The mass number stays the number but the atomic number decreases by one - usually resulting in another element


34. For a given flow rate - the speed of fluid flow is inversely proportional to what?
H = negative and S = positive
Decreasing potential energy
Cathode; anode
The cross-sectional area through which the fluid flows


35. 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
Liquid displaced by that object
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4
F = GMm/r^2


36. What is the law of conservation of linear momentum?
They are directly proportional
Colligative; the number of solute particles present
Mv = mv
Constant; stress/strain = (F/A)/ (change in L/L) = straight line withe positive slope that stays constant


37. An oxidation-reduction rxn that occurs spontaneously has what kind of E^o for the cell?
Positive
180 degrees; when there is half a wave distance in phase between two waves
One mole of electric charge
Only temperature of the water bath


38. Strength of dispersion force increases with what?
Ease of polarizability of the molecule and thus increasing molecular weight of mass
When electron falls from high energy to low energy level
It's weight = mg; the work would be the weight times the distance fell
When HIn is turned into In- - which is dependent upon the pKa of the indicator


39. The visible spectrum ranges from ____ to _____
How strong a base is
You look at what is being oxidized and reduced in the problem
400 to 700 nm
P = F(v) = mg(v -terminal)


40. In Bohr model of atom when is energy emitted?
Force times the distance over which the force acts
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
When electron falls from high energy to low energy level
+/- 1/2


41. The closer the spacing of the anode wire - the better one can specify what?
Where an event took place
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
Only temperature of the water bath
When you have central atom with six ions on it


42. The equivalence pt is what part of the titration curve? Thus looking at the range of change between the pH values along this part of the graph can tell you what?

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43. 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?
The nucleus gains a proton and no neutrons
The current is the same
It will be reduced the voltage produced by the resistor which means IR; E- IR
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting


44. What is one faraday equal to?
Only temperature of the water bath
There is the maximum amount of K and NO3 ions; crystals will precipitate out; common-ion effect
A saturated solution in which the aqueous ions are in equilibrium with the solid
One mole of electric charge


45. The concentration of OH and H30 ions are approximately equal at what pH?
7 always!!!
F = GMm/r^2
[S][2S]^2 = 4S^3
3+


46. When a falling mass is at terminal speed - what is the power expended by the air resistance?
Battery starts off chemical and creates an electrical current which creates thermal energy in the resistors
P = F(v) = mg(v -terminal)
Isolating an atom from minerals by decomposing the minerals with an electric current
Force times the distance over which the force acts


47. What happens if an atom undergoes positron decay or electron capture?
The mass number stays the number but the atomic number decreases by one - usually resulting in another element
The lowest one
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
Electrons from anode and battery


48. The basicity constant Kb measures what?
Red
At an equal distance behind it as the object is in front of the mirror
How strong a base is
The particle's charge and the magnitude of the electric field


49. In a galvanic and electrolytic cell - reduction of an ion occurs where? Oxidation of an ion occurs where?
The number of electrons emitted
Cathode; anode
From peak to peak
The particle's charge and the magnitude of the electric field


50. The square root of 10^anything is equal to what?
Force times the distance over which the force acts
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
The number of electrons emitted
Half of the exponent