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






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






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






4. A subatomic particle that has a positive charge and that is found in the nucleus of an atom Charge of +1 and mass of 1.0073 amu






5. A reaction where a compound does Not change its molecular structure.






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






7. An emperimentally determined mathmatical expression showing the rate of a reaction as a function of the concentration of its reactants






8. The weak attractive forces between molecules resulting from the small - instantaneous dipoles that occur because of the varying positions of the electrons during their motion about nuclei






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






10. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin

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


11. 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






12. Systematic pairing of a deprotonated species (base) with its protonated form (conjugate acid). Conjugates appear on opposite sides of a chemical equation.






13. 5 valence electrons -3 ions - Nitride N






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






15. A dynamic condition in which two opposing changes occur at equal rates in a closed system






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






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






18. 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






19. The solubility of a gas in a liquid is directly proportional to the partial pressure of that gas on the surface of the liquid

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


20. 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






21. (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance






22. In a solution - the substance that dissolves in the solvent






23. When polar molecules orient themselves such that the positive region of one molecule is close to the negative region of another molecule.






24. The number of atoms in exactly 12 g of pure 12c and equal to 6.022 x 10^23 is called






25. The point during a titration when the number of H+ ions and OH- ions are equal. This is at the middle of the steepest part of the titration curve.






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






27. 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






28. Product of the molar concentrations of dissociated ions in solution at any point in the reaction other than equilibrium or saturation - where each ion is raised to the power of its stoichiometric coefficient. Denoted IP.






29. Side - to side parallel orbitals overlap to share electrons - the 2nd/3rd covalent bond between two atoms - cannot rotate and maintain the bond.






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






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






32. The lowest allowable energy state of an atom






33. The quantum number that indicates the main energy level occupied by the electron. Can theoretically take on any positive interger. Denoted by the letter n.






34. Second quantum number - designated by the letter 'l.' This 'angular momentum' refers to the subshells within each principle quantum energy level. It can take on the value of an integer in the 0 to (n -1) range. The four subshellscorresponding to l=0






35. 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






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






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






38. E=hc/?






39. A solution in which water is the solvent






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






41. The percent by mass of each element in a compound






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






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






44. 4 valence electrons +4 - -4 ions. - Carbon Group can form covalent bonds with nonmetals. Only carbon forms strong pi bonds






45. The amount of product that can be made in a chemical reaction based on the amount of limiting reactant






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






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






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






49. A graph of pressure versus temperature that shows the conditions under which the phases of a substance exist






50. One - half of the distance between the center of identical atoms that are not bonded together. Since effective nuclear charge increases when moving from left to right each additional electron is pulled more strogly toward the nucleus.







Sorry!:) No result found.

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