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






2. Occurs when atoms transfer electrons to other atoms






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






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






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






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






7. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






14. Occurs when atoms share electrons






15. Subatomic particle without a charge; found in nucleus






16. Anything that occupies space and has mass






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






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






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






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






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






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






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






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






25. Occurs when atoms share electrons






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






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






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






29. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






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






37. Anything that occupies space and has mass






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






39. Atoms that have lost or gained electrons






40. Atoms that are held together by covalent bonds






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






42. Atoms that have lost or gained electrons






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






44. Occurs when atoms transfer electrons to other atoms






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






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






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






48. Subatomic particle without a charge; found in nucleus






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






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