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Basic Chemistry

Subjects : science, chemistry
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 smallest particle of an element that retains the properties of the element






2. Indicates the number and types of atoms in a molecule






3. Anything that occupies space and has mass






4. Interaction of substances that lead to the formation of new substances






5. The starting materials for a reaction; found on left side of chemical equation






6. Identifies a specific element; equals the number of protons in an atom of each element






7. Atoms that are held together by covalent bonds






8. The smallest particle of an element that retains the properties of the element






9. Anything that occupies space and has mass






10. Indicates the formation of new substances from previous substances






11. Substance made of two or more elements & one being carbon






12. Subatomic particle having a negative charge; not in nucleus but surrounds it






13. Ending materials of a reaction; found on right side of chemical equation






14. A pure substance that cannot be broken down into other substances by chemical reactions






15. Protons and neutrons together; make up the center of an atom






16. Shows the number and types of atoms in a molecule and how they are arranged






17. A covalent bond in which four valence electrons are shared between two atoms






18. Shows the number and types of atoms in a molecule and how they are arranged






19. Atoms that have lost or gained electrons






20. Electrons in the outermost energy level; they are involved in bond formation






21. The starting materials for a reaction; found on left side of chemical equation






22. Subatomic particle having a positive charge; found in nucleus






23. A covalent bond in which one pair of electrons is shared






24. Interaction of substances that lead to the formation of new substances






25. A pure substance that cannot be broken down into other substances by chemical reactions






26. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy






27. Electrons in the outermost energy level; they are involved in bond formation






28. Subatomic particle having a positive charge; found in nucleus






29. Subatomic particle without a charge; found in nucleus






30. Occurs when atoms share electrons






31. Subatomic particle having a negative charge; not in nucleus but surrounds it






32. Atoms that are held together by covalent bonds






33. Atoms that have lost or gained electrons






34. Substance made of two or more elements & none of which is carbon






35. A covalent bond in which four valence electrons are shared between two atoms






36. Ending materials of a reaction; found on right side of chemical equation






37. Protons and neutrons together; make up the center of an atom






38. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy






39. Substance containing two or more elements chemically combined in a fixed ratio






40. Subatomic particle without a charge; found in nucleus






41. Occurs when atoms transfer electrons to other atoms






42. Atoms having the same numbers of protons but different numbers of neutrons






43. Atoms having the same numbers of protons but different numbers of neutrons






44. Occurs when atoms share electrons






45. Indicates the number and types of atoms in a molecule






46. Substance containing two or more elements chemically combined in a fixed ratio






47. Substance made of two or more elements & one being carbon






48. A covalent bond in which one pair of electrons is shared






49. Identifies a specific element; equals the number of protons in an atom of each element






50. Occurs when atoms transfer electrons to other atoms