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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 without a charge; found in nucleus






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






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






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






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






6. Occurs when atoms share electrons






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






8. Anything that occupies space and has mass






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






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






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






12. Occurs when atoms share electrons






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






14. Anything that occupies space and has mass






15. Occurs when atoms transfer electrons to other atoms






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






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






18. Indicates the formation of new substances from previous substances






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






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






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






22. Occurs when atoms transfer electrons to other atoms






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






24. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






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






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






33. Atoms that are held together by covalent bonds






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






35. Atoms that have lost or gained electrons






36. Atoms that are held together by covalent bonds






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






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






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






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






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






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






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






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






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






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






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






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






49. Subatomic particle without a charge; found in nucleus






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