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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. Anything that has mass and takes up space






2. A vertical column of the periodic table






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






4. Distance between corresponding points on adjacent waves.






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






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






7. A substance that reacts in a chemical change






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






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






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






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






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






13. Having a uniform composition throughout






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






15. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






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






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






21. 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






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






23. Any substance that has a definite composition






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






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






26. A horizontal row of elements in the periodic table






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






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






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






30. A testable statement






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






32. A measure of the gravitational pull on matter






33. The measurement system accepted worldwide

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






35. The state of matter in which a substance has neither definite volume nor definite 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. A vertical column of the periodic table






38. An element that is a poor conductor of heat and electricity






39. 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.






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






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






42. A positive ion.






43. One wave per second.






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






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






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






47. The arrangement of electrons in an atom






48. 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






49. Something that has magnitude - size - or amount






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