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. (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule






2. Process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated






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






4. The ratio of the number of moles of solute dissolved in one kilogram of solvent. molality (M = moles solute/kg of solution)






5. Simplest whole # ration of atoms in a compound






6. A physical property of a solution that depends on the number - but not the identity - of the disswolved solute particles; example properties include vapor pressure lowering - boiling point elevation - osmotic pressure - and frezzing point depression






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






8. A bond formed when two atomic orbitals combine to form a molecular orbital that is symmetrical around the axis connecting the two atomic nuclei






9. PH of a molecule at which it contains no net electric charge - isoelectric point.






10. 5 different orbitals shaped like clover leaves and max electrons is 10






11. Have the shape of a sphere - with the center of the sphere at the nucleus; completely symmetrical along all axes; 1s orbital is spherically symmetric and has no nodes; 2s orbital is also spherical but contains a node and is higher in energy






12. Keq describes the ratio of product concentration to reactant concentration - with each raised to the power corresponding ot its coefficient ion in the balanced equation






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






14. Contains nonmetals that are non - reactive. Full outermost energy level except helium which has 2.






15. Play- by- play showing the individual steps of a reaction - including the formation and destruction of any reaction intermediates that may occur.






16. E=hc/?






17. 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






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






19. A concentration unit of a solution expressed as moles of solute dissolved per liter of solution






20. The intermolecular force in which a hydrogen atom that is bonded to a highly electronegative atom is attracted to an unshared pair of electrons of an electronegative atom in a nearby molecule






21. Solids in which the particles are arranged in a repeating - 3- D pattern - has a specific melting point - classified as ionic network covalent - metallic or molecular.






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






23. 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


24. An ionic compound that resists changes in its pH






25. Elements in the middle of the periodic table - in groups 3-12.






26. (chemistry) a series from actinium to lawrencium of 15 radioactive elements with increasing atomic numbers






27. States that it is impossible to determine simultaneously both the position and momentum of an electron or any other particle






28. Sum of all the masses - in AMU - present in one molecule of a molecular compound.






29. A substance that - when dissolved in water - results in a solution that can conduct electricity






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






31. Sum of the protons and neutrons in an element often denoted by the letter A






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






33. Named after their cation and anion






34. 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.






35. A base that can accept two moles of H+ per mole of itself (ex: SO4






36. 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






37. Expression of auto - ionization of water into H+ and OH- at a certain temperature - given by the product of the ions' molar concentrations. Denoted by Kw and equal to 10-






38. 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.






39. Small discrete increments of energy.






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






41. 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






42. Valence Shell Electron Pair Repulsion theory - stating that the three - dimensional molecular geometry about some central atom is determined by the elctronic repulsion between its bonding and nonbonding electron pairs.






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






44. Mixture of 2 or more substances that distills at a constant temperature and with constant composition - even though seperately the components have different boiling points






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






46. The weight in grams of compound that can be substituted by 1 atom of Hydrogen. GEW = MW / # of acidic Hyrdogens






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






48. One - half the distance between the nuclei of two atoms of the same element when the atoms are joined






49. A pair of equal and opposite electric charges or magnetic poles separated by a small distance






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






Can you answer 50 questions in 15 minutes?



Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests