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






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






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






4. Atoms of the same element that have different masses






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






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






7. A measure of the gravitational pull on matter






8. The measurement system accepted worldwide


9. A horizontal row of elements in the periodic table






10. Combination of all the forms of electromagnetic radiation.






11. 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.






12. The arrangement of electrons in an atom






13. A testable statement






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






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






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






17. A broad generalization that explains a body of facts or phenomena






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






19. Something that has magnitude - size - or amount






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






21. A positive ion.






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






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






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






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






26. 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






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






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






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






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






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






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






33. The 14 elements with the atomic numbers 90-103.






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






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






36. The general term for any isotope of any element






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






38. Anything that has mass and takes up space






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






40. Any substance that has a definite composition






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






42. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






45. A negative ion.






46. Number of waves that pass a given point in a specific time - usually one second.






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






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






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






50. The mass of one mole of a pure substance