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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 d-block elements are metals with typical metallic properties.






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






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






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






5. 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






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






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






8. The measurement system accepted worldwide

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9. 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






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






11. The general term for any isotope of any element






12. Any substance that has a definite composition






13. Having a uniform composition throughout






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






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






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






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






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






19. A vertical column of the periodic table






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






21. A measure of the amount of matter






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






23. A measure of the gravitational pull on matter






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






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






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






27. A substance that is formed by a chemical change






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






29. A testable statement






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






31. A vertical column of the periodic table






32. Something that has magnitude - size - or amount






33. Combination of all the forms of electromagnetic radiation.






34. The arrangement of electrons in an atom






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






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






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






38. A positive ion.






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






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






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






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






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






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






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






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






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






48. The mass of one mole of a pure substance






49. Not having a uniform composition throughout






50. 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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Can you answer 50 questions in 15 minutes?


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