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






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






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






4. A substance that is formed by a chemical change






5. An explanation of how phenomena occur and how data or events are related






6. A vertical column of the periodic table






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






8. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






10. The mass of one mole of a pure substance






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






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






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






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






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






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






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






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






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






20. Any process that results in the formation of an ion.






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






22. One wave per second.






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






24. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12






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






26. The state of matter in which the substance has definite volume and definite shape






27. Atoms of the same element that have different masses






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






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






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






31. The measurement system accepted worldwide


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






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






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






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






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






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






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






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






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






41. 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.


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






43. The arrangement of electrons in an atom






44. 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






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






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






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






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






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






50. 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