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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. Indicates the number and types of atoms in a molecule






2. Occurs when atoms transfer electrons to other atoms






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






4. Subatomic particle without a charge; found in nucleus






5. Atoms that have lost or gained electrons






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






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






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






9. Occurs when atoms transfer electrons to other atoms






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






11. Atoms that are held together by covalent bonds






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






13. Subatomic particle without a charge; found in nucleus






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






15. Atoms that are held together by covalent bonds






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






17. Occurs when atoms share electrons






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






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






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






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






22. Anything that occupies space and has mass






23. Atoms that have lost or gained electrons






24. Indicates the formation of new substances from previous substances






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






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






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






28. Occurs when atoms share electrons






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






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






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






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






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






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






35. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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