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






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






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






4. The amount of space occupied by an object






5. The arrangement of electrons in an atom






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






7. A substance that reacts in a chemical change






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






9. A measure of the amount of matter






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






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






12. The mass of one mole of a pure substance






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






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






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






16. A vertical column of the periodic table






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






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






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






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






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






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






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






24. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






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






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






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






32. Any substance that has a definite composition






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






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






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






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






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






38. 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.






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






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






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






42. A testable statement






43. Lowest energy state of an atom.






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






45. Having a uniform composition throughout






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






47. Atoms of the same element that have different masses






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






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






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