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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. Occurs when atoms share electrons






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






5. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






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






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






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






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






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






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






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






20. Anything that occupies space and has mass






21. Anything that occupies space and has mass






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






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






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






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






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






27. Occurs when atoms share electrons






28. Occurs when atoms transfer electrons to other atoms






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






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






31. Atoms that have lost or gained electrons






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






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






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






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






36. Atoms that are held together by covalent bonds






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






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






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






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






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






42. Indicates the formation of new substances from previous substances






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






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






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






46. Atoms that have lost or gained electrons






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






48. Indicates the formation of new substances from previous substances






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






50. Subatomic particle without a charge; found in nucleus