Test your basic knowledge |

Pre - AP Chemistry

Subjects : pre-ap, 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. Mass is neither created nor destroyed duringordinary chemical or physical reactions






2. The number of protons in the nucleus of each atom of an element






3. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition






4. The amount of space occupied by an object






5. A blend of two or more kinds of matter - each of which retains its own identity and properties






6. A substance that is formed by a chemical change






7. A chemical compound contains the same elementsin exactly the same proportions by mass regardless of the size of the sample orthe source of the compound






8. An element that is a poor conductor of heat and electricity






9. A vertical column of the periodic table






10. The suborbitals of an atom. (S - P - D - F)






11. A substance that is made from the atoms of two or more elements that are chemically bonded






12. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number






13. The study of the composition - structure - and properties of matter and the changes it undergoes






14. Not having a uniform composition throughout






15. A high-temperature physical state of matter in which atoms lose their electrons






16. The 14 elements with the atomic numbers 90-103.






17. The electrons available to be lost - gained - or shared in the formation of chemical compounds.






18. A change in which one or more substances are converted into different substances






19. One wave per second.






20. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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21. The ability of a substance to undergo a change that transforms it into a different substance






22. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation






23. An element that is a good conductor of heat and electricity






24. The weighted average of the atomic masses of thenaturally occurring isotopes of an element






25. The mass of one mole of a pure substance






26. A pure substance made of only one kind of atom






27. Which suborbital. (Py - Px - Pz)






28. Emission of electrons from a metal when light shines on a metal.






29. A unit that is a combination of SI base units






30. A 3D region around the nucleus that indicates the probable location of an electron.






31. State in which an atom has a higher potential energy than it has in it's ground state.






32. The smallest unit of an element that maintains the properties of that element






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






34. Specify the properties of atomic orbitals and the properties of electrons in orbitals.






35. Atoms of the same element that have different masses






36. 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 state.

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37. The physical and chemical properties of the elements are periodic functions of their atomic numbers.






38. Two quantities that have a constant mathematical product






39. Something that has magnitude - size - or amount






40. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.






41. The smallest unit of an element that maintains the properties of that element






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






43. A horizontal row of elements in the periodic table






44. An electron occupies the lowest-energy orbital that can receive it






45. The 14 elements with the atomic numbers 58-71.






46. The p-block elements together with the s-block elements.






47. Having a uniform composition throughout






48. The elements of group 2 of the periodic table.






49. The state of matter in which the substance has definite volume and definite shape






50. A measure of the gravitational pull on matter