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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 testable statement






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






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






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






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






6. 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.






7. 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






8. A negative ion.






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






10. A horizontal row of elements in the periodic table






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






12. Two quantities that have a constant mathematical product






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






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






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






16. Not having a uniform composition throughout






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






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






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






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






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






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






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






24. A vertical column of the periodic table






25. A measure of the amount of matter






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






27. The state of matter in which the substance has a definite volume but an indefinite shape






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






29. 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






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






31. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.






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






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






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






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






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






37. The mass of one mole of a pure substance






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






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






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






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






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






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






44. A vertical column of the periodic table






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






46. One wave per second.






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






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






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






50. The measurement system accepted worldwide

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