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






2. Occurs when atoms transfer electrons to other atoms






3. Atoms that have lost or gained electrons






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






5. Atoms that are held together by covalent bonds






6. Anything that occupies space and has mass






7. Atoms that are held together by covalent bonds






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






9. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






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






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






19. Anything that occupies space and has mass






20. Indicates the formation of new substances from previous substances






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






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






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






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






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






26. Subatomic particle without a charge; found in nucleus






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






28. Atoms that have lost or gained electrons






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






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






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






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






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






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






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






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






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






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






39. Indicates the formation of new substances from previous substances






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






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






42. Occurs when atoms share electrons






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






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






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






46. Occurs when atoms share electrons






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






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






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






50. Subatomic particle without a charge; found in nucleus