Test your basic knowledge |

CLEP Chemistry 1

Subjects : clep, science, chemistry
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. Deviations from Boyles law that occur with real gases represent _______ behavior.






2. _____ bonds are present in molecules containing double or triple bonds.






3. A chemical reaction where one substance is displacing another. ex: Fe + CuSo4 -> FeSo4 + Cu.






4. The process of determining the amount of a solution of known concentration that is required to react completely with a certain amount of a sample that is being analyzed.






5. Metals have electronegativities less than ____






6. A law stating that at constant pressure - the volume of a given quantity of a gas varies directly with the temperature.






7. When an electron moves from an excited state to the ground state - it _______ energy.






8. This process occurs when the system is thermally isolated so that no heat enters or leaves.






9. Rays made up of positive electrodes in basic electron charges.






10. The freezing point is always lowered by addition of solute.






11. A process that occurs whent eh system is maintained at constant pressure.






12. Heat added to a system and work done by a system are considered _________ quantities.






13. *The nature of the reactants and products affect chemical reactions because some elements and compounds have bonds that when broken/formed - react more rapidly with each other than others.






14. A law stating that at a constant temperature - the volume of a gas in inversely proportiona to the pressure.






15. The general shape of any molecule can be predicted from the number of bonding and non-bonding electron pairs in the valence shell of the central atom. nonbonded pairs of electrons (lone pairs) are more repellent than bonded pairs.






16. In titration - this point occurs when equal numbers of equivalents of acid and base have been reacted. The solution at this point is neutral because neither of the ions of the salt in solution undergoes hydrolysis.






17. The amount of heat energy required to raise the temperature 1g of a substance by 1 degree celcius.






18. A law that states that for a given mass of gas - the volume is proportional to the pressure and absolute temperature.






19. The _____ speed up the rate of a chemical reaction but do not change the equilibrium constant - it simply speeds up the rate of approach to equilibrium.






20. A chemical reaction where there is an actual exchange of partners to form new compounds. ex: AgNO3 + NaCl -> AgCl + NaNO3.






21. The pressure of a gas is the result of collisions between the gas molecules and the walls of the container.






22. A valence theory that permits the geometric arrangement of atoms - or groups of atoms - about some central atom to be determined solely by considering the repulsions between the electron pairs present in the valence shell of the central atom.






23. If this law was strictly obeyed - gases would not condense when they are cooled. This means that gases behave in an ideal fashion only at relatively high temperatures and low pressures.






24. When the electron moves from the ground state to an excited state - it ______ energy.






25. The vapor pressure increases with increasing _____.






26. In titration - this is the point at which a particular indicator changes color.






27. *The Concentration usually _____ the chemical reaction rate with increasing concentrations of the reactants.






28. A law that states that under conditions of constant temperature and pressure - equal volumes of different gases contain equal numbers of molecules.






29. Any spontaneous change in a chemical reaction will decrease the amount of free energy toward _______ as the process proceeds towards equilibrium.






30. A catalyst affects a chemical reaction by lowering the _____ _____ for both the forward and the reverse reactions equally.






31. The pressure exerted by the gas molecules when they are in equilibrium with the liquid.






32. Cells that convert electrical energy into chemical energy.






33. The law stating that change in internal energy is equal to the difference between the energy supplied toi the system as heat and the energy removed from the system as work performed on the surroundings.






34. *Molecules of ideal gases have no attraction for one another and have no intrinsic volume - they are ______ _____






35. *The surface area exposed affect chemical reactions because most reactions depend on the reactants coming into contact - increasing the rate of the reaction.






36. In a closed system - when opposing changes are taking place at equal rates - the system is said to be in _____ _______.






37. For a solution in which a nonvolatile solute is dissolved in a solvent - the vapor pressure is due only to the vapor of the solvent above the solution. This vapor pressure is given by _______ law.

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


38. A law stating that the vapor pressure of a solution at a particular temperature is equal to teh mole fraction of the solvent in the liquid phase multiplied by the vapor pressure of the pure solvent at the same temperature.






39. A state function in which it is the heat content of a substance.






40. A catalyst lowers the ______ _____ _____ that must be overcome in order for the reaction to proceed. It merely speeds the approach to equilibrium but does not change Keq at all.

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


41. *The temperature affects chemical reactions with an increase of ___degrees C above room temperature - causing the reaction rate to double.






42. *Each wave function corresponds to a certain electron energy and describes a region about the nucleus (orbital) where an electron having that energy may be found.






43. The amount of heat energy required to raise the temperature of a given quantity of a substance one degree celcius.






44. _______ has very little effect on the solubility of liquids or solids in liquid solvents.






45. The average kinetic energy of all the molecules collectively is directly proportional to the absolute temperature of the gas. The average kinetic energy of equal numbers of molecules of any gas is the same at the same temperature.






46. The ________ of an element is a number that measerures the relative strength in which the atoms of the element attract valence electrons in a chemical bond - on a scale of 0-4.






47. An increase in temperature causes the position of equilibrium of an exothermic reaction to be shifted to the _____ - while that of and endothermic reactions is shifted to the _______.

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


48. Decreasing the concentrations of reactants shifts the equilibrium to the ______ - thus decreasing the concentration of products formed.

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


49. A pure crystal of elemental metal consists of roughly Avogrado's number of atoms held together by ________ bonds.






50. In an endothermic process - energy is absorbed and ^E is _______.







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