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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 pure substance made of only one kind of atom






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






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






4. A measure of the amount of matter






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






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






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






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






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






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






11. 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






12. An element that is a good conductor of heat and electricity






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






14. Lowest energy state of an atom.






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






16. The general term for any isotope of any element






17. 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.






18. Atoms of the same element that have different masses






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






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






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






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






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






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






25. A positive ion.






26. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.

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27. The suborbitals of an atom. (S - P - D - F)






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






29. A blend of two or more kinds of matter - each of which retains its own identity and properties






30. 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






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






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






33. The amount of space occupied by an object






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






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






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






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






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






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






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






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






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






44. One wave per second.






45. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






46. Combination of all the forms of electromagnetic radiation.






47. Not having a uniform composition throughout






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






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






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