Test your basic knowledge |

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. An outer main energy level occupied - in most cases - by 8 electrons






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






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






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






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






6. The mass of one mole of a pure substance






7. Any substance that has a definite composition






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






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






10. 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






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






12. The measurement system accepted worldwide

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






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






15. Distance between corresponding points on adjacent waves.






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






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






18. Lowest energy state of an atom.






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






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






21. A testable statement






22. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






24. Two quantities that have a constant mathematical product






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






26. One wave per second.






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






28. An electron occupies the lowest-energy orbital that can receive it






29. A measure of the amount of matter






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






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






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






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






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






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






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






37. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






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






39. The arrangement of electrons in an atom






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






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






42. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)






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






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






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






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






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






48. 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






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






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