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






2. A measure of the amount of matter






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






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






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






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






7. The closeness of measurements to the correct or accepted value of the quantity measured






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






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






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






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






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






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






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






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






16. 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.






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






18. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






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






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






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






22. A positive ion.






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






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






25. A substance that is formed by a chemical change






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






27. A horizontal row of elements in the periodic table






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






29. No two electrons in the same atom can have the same set of four quantum numbers






30. 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






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






32. A negative ion.






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






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






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






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






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






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






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






40. Something that has magnitude - size - or amount






41. 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






42. Two quantities that have a constant mathematical product






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






44. A measure of the gravitational pull on matter






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






46. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






50. Anything that has mass and takes up space







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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