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. How would you find rate of rxn from pH 1 to pH2?
Colligative; the number of solute particles present
It will increase as well because they are directly related - only if pressure is kept constant
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
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


2. if lead is successively preciptated as PbSO4 - PbI - and PbCO2 - which is less soluble than which? Thus which anions will be precipitated first?
Positron because this is known as positron decay/electron capture
They are directly proportional
It will increase as well because they are directly related - only if pressure is kept constant
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4


3. What is the magnitude of the electric field produced by a point charge?
E = (kq)/r^2
B = pVg; density
From peak to peak
The cmpd without the O cannot donate H's like alcohol can to form H bonds with water


4. Equivalent mass is what?
The path is longer on the inclined plane so it will take object longer to reach the bottom
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
Mag and direction
The buoyant force on it; W = mg = pVg


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


6. What is Newton's Universal Law of Gravitation?
F = GMm/r^2
Cathode; anode
Only temperature of the water bath
That of static friction; there is a net accelerating force on the block once it starts to slide


7. How do you balance redox rxns?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


8. What happens to the atomic number and atomic mass of an element that go under Beta decay or positron emission?
Mass number stays the same but the atomic number increases
V/m or N/C
Accelerated by a higher voltage between the cathode and anode
When all the external forces = zero


9. If both weight and bouyant force are dependent on g - that makes g independent of what?
The volume of the ice cube or whatever it is
H has a small atomic radius
Wavelength: (change in y)/(y) = v/c frequency: (change in f)/(f) = -v/c
[S][2S]^2 = 4S^3


10. 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
At an equal distance behind it as the object is in front of the mirror
Force times the distance over which the force acts
That it is negative


11. What is the amt of energy that a frictional force generates?
One mole of electric charge
Force times the distance over which the force acts
When all the external forces = zero
(density[p])(volume)


12. The range of pH in which a color change takes place in a titration depends on what?
External components of the circuit
T = 2pi/angular velocity; v/r
When HIn is turned into In- - which is dependent upon the pKa of the indicator
It decreases; the work done by the gas in expanding decreases its internal energy


13. Acetic acid is a ______ solvent
Yes - if the particle's trail is equidistant between two adjacent anodes
When you have central atom with six ions on it
Polar
Colligative; the number of solute particles present


14. The square root of 10^anything is equal to what?
Momentum
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4
Half of the exponent
Going from solid to gas phase


15. How do you find wavelength if you known distance from adjacent crests and troughs?
Its twice that distance
No - it increases the speed at which the rxn reaches that equilibrium
It decreases; the work done by the gas in expanding decreases its internal energy
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


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


17. If you have circuit elements in parallel what is the same across them?
Positive
Voltage
A salt and water
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


18. In order to increase the kinetic energy of electrons - they must be what?
They are directly proportional
A constant force on a mass causes it to have a constant acceleration
1000
Accelerated by a higher voltage between the cathode and anode


19. 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?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


20. How do you find moles of a substance when you are given faradays and electrons?
400 to 700 nm
L = wavelength/2 so L= (wavelength)(2)
It's weight = mg; the work would be the weight times the distance fell
Faraday/electrons


21. What is the relationship between P and n in PV=nRT?
Negative
1000
Electrons from anode and battery
They are directly proportional


22. 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?
You should look for the two substances that appear to be equal in structure - with no structural differences (or as little as possible)
Energy
It decreases; the work done by the gas in expanding decreases its internal energy
The nucleus gains a proton and no neutrons


23. In PV=nRT - if temp increases what will happen to volume?
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
Red
Attractive molecular forces acting between material surfaces in contact


24. What does the empirical formula show?
An odd number
The current is the same
The lowest whole number ratio of moles of each element in a mole of a cmpd
A saturated solution in which the aqueous ions are in equilibrium with the solid


25. Beta decay is the same as what?
An odd 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
Positron emission
T = (2h/g)^1/2; distance = vt


26. Kb is the equilibrium constant for what?
Sp^3
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
P = IV
The reaction between the base and water


27. Charged particles in motion constitute what? Freely moving charges are deflected by what? The curved path depends on what?
Going from solid to gas phase
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
W = F(displacement)
When all the external forces = zero


28. How do you find specific gravity of an object?
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
P = IV
It can also equal 'mg'; the compressive strength of a substance
Electrons from anode and battery


29. So if you are given an equation and it gives you the E^o for both side equations seen in the big equation - what do you do with them?
The lowest whole number ratio of moles of each element in a mole of a cmpd
Add them together
Red
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


30. Heat from friction comes from what?
Yes - if the particle's trail is equidistant between two adjacent anodes
Decreasing potential energy
The number of electrons emitted
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)


31. If asked which electron configuration of an element is most stable which one do you choose?
Zero
Mg
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
The regular one


32. Considering the answer in the last slide - what kind of a solution would have a lower freezing pt?
The volume of the ice cube or whatever it is
Its intensity in the spectrum
It's weight = mg; the work would be the weight times the distance fell
One that has more solute particles per liter of solution


33. What is the unit for Young's Modulus?
Pascal (N*m^2)
Constant to overcome the heat of fusion (solid to liquid state)
Vertically; perpendicular to all surfaces
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


34. What is the formula for the power supplied by a battery to accelerate an electron beam?
Wavelength: (change in y)/(y) = v/c frequency: (change in f)/(f) = -v/c
P = IV
Attractive molecular forces acting between material surfaces in contact
It can also equal 'mg'; the compressive strength of a substance


35. If any species is gotten rid of when combining two equations of chemical rxns together what can you conclude about those species?
Voltage
That they are catalysts in the rxn because they react with the substrate and are reformed
The number of electrons emitted
Mg


36. What gas is evolved when copper is placed in a nitric acid (HNO3) solution? This is what type of rxn?
NO; reduction-oxidation
It will be reduced the voltage produced by the resistor which means IR; E- IR
They must balance
Mv = mv


37. If temperature arises during a mixture what can you conclude about the enthalpy?
That it is negative
Constant to overcome the heat of fusion (solid to liquid state)
H has a small atomic radius
External components of the circuit


38. In a rxn - how do you figure out which atom has the highest electron affinity?
It decreases; the work done by the gas in expanding decreases its internal energy
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
Decreasing potential energy
V/m or N/C


39. Hydrogen has what kind of standard oxidation or reduction potential?
Ease of polarizability of the molecule and thus increasing molecular weight of mass
Decreasing potential energy
Alkali metals = first column
Zero


40. Can a catalyst shift equilibrium?
They are directly proportional
One that has more solute particles per liter of solution
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
No - it increases the speed at which the rxn reaches that equilibrium


41. 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?
Red
The lowest one
Momentum
0 Hz because they are traveling side by side at the same speed


42. Why is it important that the materials used as scintillators are nearly transparent to the wavelength of light they emit?
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
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
Positron because this is known as positron decay/electron capture
It can absorb light that lets other electrons fill those orbitals


43. What type of acid and base would produce a pH closest to 7?
Going from solid to gas phase
Strong acid and strong base/ weak acid and weak base
Liquid displaced by that object
Mv = mv


44. Terminal voltage is provided to what?
The blood pressure in the leg is greater because the column between the arm and the leg has a hydrostatic pressure
The number of electrons emitted
Mag and direction
External components of the circuit


45. The closer the spacing of the anode wire - the better one can specify what?
Where an event took place
Shorter than it should be so rays from a distant object form in front of retina; use divergent lens
There is the maximum amount of K and NO3 ions; crystals will precipitate out; common-ion effect
Colligative: it depends on the number of solute molecules in a given volume of water


46. When does red litmus paper turn blue?
[S][2S]^2 = 4S^3
In the presence of a base
Zero
7 always!!!


47. Light can be carried along a distance within a transparent material by means of what?
A constant force on a mass causes it to have a constant acceleration
It has a positive oxidation potential so it is easily oxidized
Half of the exponent
Total internal reflection


48. How do you find what is the limiting reagent? You can then use the moles of the limiting reagent to calculate what?
The cmpd without the O cannot donate H's like alcohol can to form H bonds with water
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
Shorter than it should be so rays from a distant object form in front of retina; use divergent lens
A constant force on a mass causes it to have a constant acceleration


49. What is the equation for bouyant force? What is p?
Electrons from anode and battery
Pascal (N*m^2)
It's weight = mg; the work would be the weight times the distance fell
B = pVg; density


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183