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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. What would the force be of a block on a pulley? What would be its displacement?

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2. What is newton's second law?
Neutrons; atomic number
Yes - if the particle's trail is equidistant between two adjacent anodes
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


3. How do you find the equiv capacitance of capacitors in series and parallel? What about if you are trying to find equivalent resistance?
It decreases; the work done by the gas in expanding decreases its internal energy
Light is absorbed and re-emitted by the atomic structure of the optically dense medium
Faraday/electrons
C: series = 1/C + 1/C = 1/C; parallel = C + C = C R: series: R+R = R; parallel = 1/R + 1/R = 1/R


4. When looking at which combo of acids and bases will result in a solution with pH of 7 what do we look for?
Light is absorbed and re-emitted by the atomic structure of the optically dense medium
The Ka or Kb that has an exponent closest to 7 because pKa + pKb = pKw and pKw = 14
Polar
Ease of polarizability of the molecule and thus increasing molecular weight of mass


5. What kind of metals react violently with water?
H = negative and S = positive
Energy
Alkali metals = first column
Force times the distance over which the force acts


6. The total pressure of a solution is what? Give example.
They must balance
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
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
Vertically; perpendicular to all surfaces


7. In order to guarantee a non-zero spin how many electrons are needed?
They increase because you hear a lower frequency
An odd number
Add them together
400 to 700 nm


8. Why does light travel slower in an optically dense medium than through a vacuum?
H has a small atomic radius
Light is absorbed and re-emitted by the atomic structure of the optically dense medium
The Ka or Kb that has an exponent closest to 7 because pKa + pKb = pKw and pKw = 14
Sp^3


9. The number of incident photons on the cathode affect what?
The regular one
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
Colligative: it depends on the number of solute molecules in a given volume of water
The number of electrons emitted


10. At the moment of explosion of an object - what is its momementum? Why? After an explosion what is the total momentum carried by all the fragments?
T = 2pi/angular velocity; v/r
Battery starts off chemical and creates an electrical current which creates thermal energy in the resistors
3+
Its momentum is zero because velocity is zero; zero because of conservation of momentum


11. How do you find length of time something is in flight? How do you find distance it traveled?
The lowest amt than any of the other cmpds with a higher carbon to oxygen ratio
The element's mass number
The lowest one
T = (2h/g)^1/2; distance = vt


12. Young's modulus is a ________ for a material. What is it's ratio? What would a graph of it look like?
Constant; stress/strain = (F/A)/ (change in L/L) = straight line withe positive slope that stays constant
It will increase as well because they are directly related - only if pressure is kept constant
B = pVg; density
T = (2h/g)^1/2; distance = vt


13. A cmpd with the lowest carbon to oxygen ratio will require how much oxygen for combustion?
The lowest amt than any of the other cmpds with a higher carbon to oxygen ratio
Find how many mol of Ni is available and CO3 available and see which one has lowest number and that's how many moles
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)
Mag and direction


14. The boiling point of a solution is what type of property? Which means is depends only on what?
Attractive molecular forces acting between material surfaces in contact
A saturated solution in which the aqueous ions are in equilibrium with the solid
A positron or electron; when atomic number goes up you know an electron has been emitted
Colligative; the number of solute particles present


15. In a rxn - how do you figure out which atom has the highest electron affinity?
-l to +l
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
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
The particle's charge and the magnitude of the electric field


16. 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?
1) Young's Modulus 2) Shear Modulus 3) Bulk Modulus
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
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4
That they are catalysts in the rxn because they react with the substrate and are reformed


17. When an element decreases its atomic number by one what is emitted?
That it is negative
Positron because this is known as positron decay/electron capture
It has a positive oxidation potential so it is easily oxidized
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


18. In a healthy person standing at rest - a comparison of arterial blood pressure measured in the arm with that in the leg - shows what about the differences between these pressures?
The blood pressure in the leg is greater because the column between the arm and the leg has a hydrostatic pressure
Well F = GmM/R^2 and force = mg so equating those together g = GM/R^2
The lowest one
No - it increases the speed at which the rxn reaches that equilibrium


19. Can a catalyst shift equilibrium?
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)
No - it increases the speed at which the rxn reaches that equilibrium
Negative
Faraday/electrons


20. If temperature arises during a mixture what can you conclude about the enthalpy?
Total internal reflection
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
Ease of polarizability of the molecule and thus increasing molecular weight of mass
That it is negative


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

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22. Kb is the equilibrium constant for what?
Where an event took place
The reaction between the base and water
-l to +l
[A]^a[B]^b


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

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24. 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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25. What is conserved in an inellastic collision?
Pascal (N*m^2)
Dipole moment; the attractive forces holding them together in liquid state are London or dispersion forces
Momentum
One mole of electric charge


26. Does the temperature of a water bath or amount of water in a water bath determines if a substance melts?
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
Colligative; the number of solute particles present
The density of the water and volume of the lead object


27. The force on an electrical charge is what?
Zero
An odd number
F =ma and F= qE
It experiences a constant electric force of qE and will thus accelerate towards the positive plate


28. The square root of 10^anything is equal to what?
Zero
Positron because this is known as positron decay/electron capture
You should look for the two substances that appear to be equal in structure - with no structural differences (or as little as possible)
Half of the exponent


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

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30. What do electrolytic techniques involve?
Pascal (N*m^2)
Positron emission
Isolating an atom from minerals by decomposing the minerals with an electric current
Zero


31. If any species is gotten rid of when combining two equations of chemical rxns together what can you conclude about those species?
Sp^3
It will increase as well because they are directly related - only if pressure is kept constant
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
That they are catalysts in the rxn because they react with the substrate and are reformed


32. The probability of an X-ray emission event at a given wavelength is measured by what?
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
Its intensity in the spectrum
Yes because ionic zinc has oxidation of (2+) and Zn is easily oxidized so it will displace H and ZnCl2 will be formed
Attractive molecular forces acting between material surfaces in contact


33. What are the units of an electric field?
How strong a base is
V/m or N/C
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
Isolating an atom from minerals by decomposing the minerals with an electric current


34. How would you find rate of rxn from pH 1 to pH2?
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
C: series = 1/C + 1/C = 1/C; parallel = C + C = C R: series: R+R = R; parallel = 1/R + 1/R = 1/R
At an equal distance behind it as the object is in front of the mirror
P = IV


35. What gas is evolved when copper is placed in a nitric acid (HNO3) solution? This is what type of rxn?
400 to 700 nm
The force along the board to the normal force
NO; reduction-oxidation
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


36. In a galvanic and electrolytic cell - reduction of an ion occurs where? Oxidation of an ion occurs where?
The lowest whole number ratio of moles of each element in a mole of a cmpd
One mole of electric charge
Cathode; anode
Negative


37. What is the equation for pressure?
Well F = GmM/R^2 and force = mg so equating those together g = GM/R^2
Wavelength: (change in y)/(y) = v/c frequency: (change in f)/(f) = -v/c
Density (gravitational constant) height
A positron or electron; when atomic number goes up you know an electron has been emitted


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

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39. The volume of an object is equal to water?
In the presence of a base
Constant; stress/strain = (F/A)/ (change in L/L) = straight line withe positive slope that stays constant
There is the maximum amount of K and NO3 ions; crystals will precipitate out; common-ion effect
Liquid displaced by that object


40. What happens to a negatively charged particle put between two parallel plates?
The lowest amt than any of the other cmpds with a higher carbon to oxygen ratio
It experiences a constant electric force of qE and will thus accelerate towards the positive plate
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
Its intensity in the spectrum


41. Isotopes have diff number of ______ but same 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
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
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
Neutrons; atomic number


42. When is a body in translational equilibrium?
When all the external forces = zero
How strong a base is
Constant; stress/strain = (F/A)/ (change in L/L) = straight line withe positive slope that stays constant
Yes because ionic zinc has oxidation of (2+) and Zn is easily oxidized so it will displace H and ZnCl2 will be formed


43. If you are given density and volume how do you find mass?
(density[p])(volume)
Colligative: it depends on the number of solute molecules in a given volume of water
Yes - if the particle's trail is equidistant between two adjacent anodes
1) Young's Modulus 2) Shear Modulus 3) Bulk Modulus


44. The phase difference corresponding to a half wave is what? When do you get destructive interference?
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)
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
180 degrees; when there is half a wave distance in phase between two waves
Colligative: it depends on the number of solute molecules in a given volume of water


45. What kind of geometry is octahedral?
Alkali metals = first column
Isolating an atom from minerals by decomposing the minerals with an electric current
-l to +l
When you have central atom with six ions on it


46. What is the unit for Young's Modulus?
Yes - if the particle's trail is equidistant between two adjacent anodes
Pascal (N*m^2)
F =ma and F= qE
They do not differ


47. Friction is caused by what?
Its momentum is zero because velocity is zero; zero because of conservation of momentum
It experiences a constant electric force of qE and will thus accelerate towards the positive plate
Total internal reflection
Attractive molecular forces acting between material surfaces in contact


48. Why would a solution with unfilled orbitals be responsible for turning a solution a certian color?
H = negative and S = positive
Cathode; anode
It can absorb light that lets other electrons fill those orbitals
When electron falls from high energy to low energy level


49. The freezing point of an aqueous solution is what kind of property? What does this mean?
The reaction between the base and water
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
Colligative: it depends on the number of solute molecules in a given volume of water


50. Terminal voltage is provided to what?
The density of the water and volume of the lead object
At an equal distance behind it as the object is in front of the mirror
Energy
External components of the circuit