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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. Not having a uniform composition throughout






2. A testable statement






3. Two quantities that have a constant mathematical product






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






5. A positive ion.






6. Lowest energy state of an atom.






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






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






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






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






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






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






13. 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






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






15. 1/2 the distance between the nuclei of identical atoms that are bonded together.






16. A measure of the amount of matter






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






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






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






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






21. Atoms of the same element that have different masses






22. Something that has magnitude - size - or amount






23. The amount of space occupied by an object






24. 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.






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






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






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






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






29. Anything that has mass and takes up space






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






31. A measure of the gravitational pull on matter






32. Any substance that has a definite composition






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






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






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






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






37. A substance that is formed by a chemical change






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






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






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






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






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






43. 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






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






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






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






47. A vertical column of the periodic table






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






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






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







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Can you answer 50 questions in 15 minutes?


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