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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. The arrangement of electrons in an atom






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






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






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






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






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






7. 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.






8. 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






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






10. A measure of the gravitational pull on matter






11. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers






12. Atoms of the same element that have different masses






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






14. The amount of space occupied by an object






15. Combination of all the forms of electromagnetic radiation.






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






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






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






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






20. Minimum quantity of energy that can be lost or gained by an atom.






21. A measure of the amount of matter






22. A physical change of a substance from one state to another






23. The elements of group 17 of the periodic table.






24. Distance between corresponding points on adjacent waves.






25. The general term for any isotope of any element






26. A horizontal row of elements in the periodic table






27. One wave per second.






28. A vertical column of the periodic table






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






30. Not having a uniform composition throughout






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






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






33. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






34. The energy change that occurs when an electron is acquired by a neutral atom.






35. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data






36. A substance that reacts in a chemical change






37. An element that has some characteristics of metals and some characteristics of nonmetals






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






39. A testable statement






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






41. A vertical column of the periodic table






42. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






44. The elements of group 1 of the periodic table.






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






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






47. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated






48. A substance that is formed by a chemical change






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






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