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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. Atoms that have lost or gained electrons






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






3. Subatomic particle without a charge; found in nucleus






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






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






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






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






8. Atoms that have lost or gained electrons






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






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






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






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






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






14. Anything that occupies space and has mass






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






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






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






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






19. Indicates the formation of new substances from previous substances






20. Subatomic particle without a charge; found in nucleus






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






22. Occurs when atoms share electrons






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






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






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






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






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






28. Indicates the formation of new substances from previous substances






29. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






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






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






39. Anything that occupies space and has mass






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






41. Occurs when atoms share electrons






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






43. Atoms that are held together by covalent bonds






44. Atoms that are held together by covalent bonds






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






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






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






48. Occurs when atoms transfer electrons to other atoms






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






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