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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. Not having a uniform composition throughout






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






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






4. Anything that has mass and takes up space






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






6. A vertical column of the periodic table






7. A measure of the amount of matter






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






9. Any process that results in the formation of an ion.






10. The measurement system accepted worldwide

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11. Atoms of the same element that have different masses






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






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






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






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






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






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






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






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






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






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






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






23. The total number of protons and neutrons in the nucleus of an isotope






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






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






26. The total amount of energy level an atom has.






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






28. 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






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






30. One wave per second.






31. The mass of one mole of a pure substance






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






33. A vertical column of the periodic table






34. Combination of all the forms of electromagnetic radiation.






35. A negative ion.






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






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






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. A measure of the gravitational pull on matter






40. 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






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






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






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






44. Distance between corresponding points on adjacent waves.






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






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






47. A horizontal row of elements in the periodic table






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






49. Something that has magnitude - size - or amount






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