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DSST Physical Sciences2

Subjects : dsst, science
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 gas is evolved when copper is placed in a nitric acid (HNO3) solution? This is what type of rxn?






2. If you have circuit elements in parallel what is the same across them?






3. In a galvanic and electrolytic cell - reduction of an ion occurs where? Oxidation of an ion occurs where?






4. 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?






5. Strength of dispersion force increases with what?






6. What is Avagadro's number regarding ions/mol?






7. A cmpd with the lowest carbon to oxygen ratio will require how much oxygen for combustion?






8. What is the unit for Young's Modulus?






9. Does the temperature of a water bath or amount of water in a water bath determines if a substance melts?






10. What is Newton's Universal Law of Gravitation?






11. What is the hybridization of oxygen in water and other oxygens similar to water with two bonds and two lone pairs of electrons?






12. What do electrolytic techniques involve?






13. 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?






14. What is the doppler equation for wavelength and frequency?






15. An alpha particle can also be assumed to be what element? What is the mass number of Helium?






16. What is one faraday equal to?






17. 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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18. How do you find the equiv capacitance of capacitors in series and parallel? What about if you are trying to find equivalent resistance?






19. The concentration of OH and H30 ions are approximately equal at what pH?






20. If temperature arises during a mixture what can you conclude about the enthalpy?






21. A floating ice cube implies that it's weight is balanced by what?






22. Neither N2 or O2 have a permanent what? What does this mean?






23. An oxidation-reduction rxn that occurs spontaneously has what kind of E^o for the cell?






24. How would you find rate of rxn from pH 1 to pH2?






25. When the source of a sound is flying away from you what happens to the wavelengths from peak to peak?






26. The volume of an object is equal to water?






27. What does specific heat of a substance tell you? Thus what does a higher specific heat tell you?






28. What is a metathesis rxn?






29. What kind of charge is on Al?






30. Friction is caused by what?






31. Acetic acid is a ______ solvent






32. The coefficient of static friction is the ratio of what?






33. 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?






34. A saturated solution of KNO3 means what? If you add salt that has any of these two ions what will happen? What is this called?






35. A pendulum moves under the influence of what?






36. When you are trying to calculate a galvanic cell's emf - what do you look at?






37. What does spatial resolution refer to?






38. 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?






39. If you have longer wavelengths how is their freq and energy compared to shorter wavelengths?






40. In Bohr model of atom when is energy emitted?






41. When a falling mass is at terminal speed - what is the power expended by the air resistance?






42. What color is above 656 nm?






43. 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?






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

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45. How do you find what is the limiting reagent? You can then use the moles of the limiting reagent to calculate what?






46. Light can be carried along a distance within a transparent material by means of what?






47. What if the circuit elements are in series?






48. What direction do gravity and bouyancy work? What direction does water pressure work?






49. The electrons emitted from cathode are replaced with what?






50. 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?






Can you answer 50 questions in 15 minutes?



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