Test your basic knowledge |

MCAT Chemistry

Subjects : mcat, 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. Product of the molar concentrations of dissociated ions in solution at saturation - where each ion is raised to the power of its stoichiometric coefficient. Denoted Ksp.






2. The tendency for an atom to attract electrons to itself when it is chemically combined with another element






3. Common definition of acids as proton (H+) donors and bases as proton acceptors






4. The vapor pressure of solution is the product of the mole fraction of the solvent and the vapor pressure of the pure solvent. P_a=X_aP_total

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


5. A covalent bond in which the bonding electrons are shared equally by the bonded atoms - resulting in a balanced distribution of electrical charge






6. The reaction of the ions that characterize acids and the ions that characterize bases to form water molecules and a salt






7. Have three valance electrons. In certain instances - some elements will loose three electrons - but they will also share electrons with another element to attain stability.






8. (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance C>>>>A+B






9. An element in an 'A' group in the periodic table; as a group these elements display a wide range of physical and chemical properties. In their atoms - the s and p sublevels in the highest occupied energy level are partially filled






10. (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory) E=hf






11. Contains nonmetals - 7 valence electrons in it's outermost energy level. Very reactive






12. Named after their cation and anion






13. The formation of one or more covalent bonds between an electron pair donor and an electron pair acceptor






14. No two electrons or protons or neutrons in a given system can be in states characterized by the same set of quantum numbers






15. A solution in which water is the solvent






16. Defined acids as subtsances that produced H ions in water - while bases produced OH ions. When they reacted together - H and OH neutralise to make water






17. The amount of a substance that contains as many particles as there are atoms in exactly 12g of carbon -12






18. The center of the atom which contains the protons and neutrons; in cells - structure that contains the cell's genetic material (DNA) and controls the cell's activities






19. An atom - ion - or molecule that donates an electron pair to form a covalent bond.






20. Halogens; ns2np5 - - 2nd most reactive group - The Halogens; very active because of need to fill; form -1 ions; 7 electrons in valence shell; tend to form salts with elements from groups 1A and 2A






21. States that if a stress is applied to a system at equilibrium - the system shifts in the direction that relieves the stress.






22. Large molecular structures - strong covalent bonding - share qualities of IONIC And COVALENT






23. A naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers






24. A reaction in which atoms of one element take the place of atoms of another element in a compound






25. The area of chemistry that is concerned with reaction rates and reaction mechanisms






26. The energy required to break a chemical bond and form neutral isolated atoms






27. An atom - radical - or molecule that has gained or lost one or more electrons and has a negative or positive charge






28. Energy released when an atom or ion in the gaseous state gains an electron. Increases from left to right and from bottom to top on the Periodic Table.






29. A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion






30. 1913 - Niels Bohr - said that electrons formed specific layers instead or random ones - said atoms atoms absorb and give off energy when the electrons move from one shell to another






31. The pressure exerted by a vapor in equilibrium with its liquid or solid phase






32. A definite stable energy that a physical system can have






33. A reaction in which two or more substances combine to form a single substance A+B>>>>>>>C






34. The ratio of the actual yield to the theoretical yield for a chemical reaction expressed as a percentage; a measure of the efficiency of a reaction






35. Attractions between molecules caused by the electron motion on one molecule affecting the electron motion on the other through electrical forces; these are the weakest interactions between molecules






36. Resulting positive nuclear charge an outer electron senses after accounting for the shielding effect of inner core electrons. Abbreviated as Z(eff). Increases from left to right - and bottom to top on the Periodic Table.






37. Slightly less reactive than alkali metals - comprise group II






38. Gram equivalent weight of solute per liter of solution - often denoted by N.






39. An atom or group of atoms that has a positive or negative charge






40. The Percent by mass of each element in a compound.






41. Any sample of a given compound will contain the same elements in the identical mass ratio.






42. At a constant pressure - the volume of an ideal gas is directly proportinal to its temperature: V (a) T

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


43. A chemical reaction involving the transfer of one or more electrons from one reactant to another; also called oxidation - reduction reaction.






44. A chemical bond that involves sharing a pair of electrons between atoms in a molecule






45. A measured amount of a solution of unknown concentration is added to a known volume of a second solution until the reaction between them is just complete






46. A solid made up of particles that are not arranged in a regular pattern.






47. Standard Temperature and Pressure. 273 Kelvin (0 Celsius) - 1 atmosphere (760 torr - 760 kPA).






48. An elementary particle with 0 charge and mass about equal to a proton






49. Property of the elements that can be predicted from the arrangement of the periodic table






50. The weight in grams of one mole of a given elementand is expressedin tems of grams per mole.