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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. A characteristic that can be observed or measured without changing the identity of the substance






2. Two quantities that have a constant mathematical product






3. Mass is neither created nor destroyed duringordinary chemical or physical reactions






4. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)






5. A substance that reacts in a chemical change






6. The d-block elements are metals with typical metallic properties.






7. Two quantities that give a constant value when one is divided by the other






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






9. Not having a uniform composition throughout






10. A property that depends on the amount of matter that is present






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






12. 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.


13. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)






14. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together






15. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12






16. Something that has magnitude - size - or amount






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






18. 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






19. Anything that has mass and takes up space






20. The mass of one mole of a pure substance






21. A measure of the amount of matter






22. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100






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






24. The total amount of energy level an atom has.






25. An explanation of how phenomena occur and how data or events are related






26. A testable statement






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






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






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






30. Combination of all the forms of electromagnetic radiation.






31. Describes mathematically the wave properties of electrons and other very small particles.






32. The general term for any isotope of any element






33. The total number of protons and neutrons in the nucleus of an isotope






34. An outer main energy level occupied - in most cases - by 8 electrons






35. The state of matter in which the substance has a definite volume but an indefinite shape






36. A ratio derived from the equality between two different units that can be used to convert from one unit to the other






37. Distance between corresponding points on adjacent waves.






38. The emission of a continuous range of frequencies of electromagnetic radiation.






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






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






41. A change in a substance that does not involve a change in the identity of the substance






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






43. The closeness of a set of measurements of the same quantity made in the same way






44. The energy required to remove one electron from a neutral atom of an element.






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






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






47. A property that does not depend on the amount of matter present






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






49. A broad generalization that explains a body of facts or phenomena






50. An arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column or group.