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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 change in a substance that does not involve a change in the identity of the substance






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






3. Which way it spins. (up or down)






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






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






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






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






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






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






10. Two quantities that have a constant mathematical product






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






12. Number of waves that pass a given point in a specific time - usually one second.






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






14. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.






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






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






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






18. A testable statement






19. A horizontal row of elements in the periodic table






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






21. 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






22. A substance that is formed by a chemical change






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






24. One wave per second.






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






26. Atoms of the same element that have different masses






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






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






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






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






31. A measure of the amount of matter






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






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






34. A positive ion.






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






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






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






38. A negative ion.






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






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






41. Any substance that has a definite composition






42. The ratio of mass to volume or mass divided by volume






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






44. The state of matter in which a substance has neither definite volume nor definite shape






45. A vertical column of the periodic table






46. Distance between corresponding points on adjacent waves.






47. 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






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






49. 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






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







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