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






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






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






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






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






6. Occurs when atoms transfer electrons to other atoms






7. Atoms that are held together by covalent bonds






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






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






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






11. Occurs when atoms share electrons






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






13. Atoms that have lost or gained electrons






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






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






16. Occurs when atoms transfer electrons to other atoms






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






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






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






20. Occurs when atoms share electrons






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






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






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






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. Anything that occupies space and has mass






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






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






29. Atoms that have lost or gained electrons






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






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






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






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






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






35. Anything that occupies space and has mass






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






37. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






44. Atoms that are held together by covalent bonds






45. Subatomic particle without a charge; found in nucleus






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






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






48. Subatomic particle without a charge; found in nucleus






49. Indicates the formation of new substances from previous substances






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