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






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






3. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






6. The arrangement of electrons in an atom






7. A reaction in which one or more substances are converted into different substances






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






9. A testable statement






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






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






12. One wave per second.






13. Combination of all the forms of electromagnetic radiation.






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






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






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






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






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






19. A substance that reacts in a chemical change






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






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






22. A substance that is formed by a chemical change






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






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






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






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






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






28. The general term for any isotope of any element






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






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






31. A negative ion.






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






33. A measure of the gravitational pull on matter






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






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






36. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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37. A horizontal row of elements in the periodic table






38. 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






39. Anything that has mass and takes up space






40. The study of the composition - structure - and properties of matter and the changes it undergoes






41. 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.






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






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






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






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






46. A measure of the amount of matter






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






48. A vertical column of the periodic table






49. A unit that is a combination of SI base units






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