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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. Atoms that have lost or gained electrons






2. Indicates the formation of new substances from previous substances






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






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






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






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






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






8. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






15. Atoms that are held together by covalent bonds






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






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






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






19. Subatomic particle without a charge; found in nucleus






20. Occurs when atoms share electrons






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






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






23. Anything that occupies space and has mass






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






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






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






27. Subatomic particle without a charge; found in nucleus






28. Atoms that have lost or gained electrons






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






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






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






32. Atoms that are held together by covalent bonds






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






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






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






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






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






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






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






40. Occurs when atoms share electrons






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






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






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






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






45. Occurs when atoms transfer electrons to other atoms






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






47. Indicates the formation of new substances from previous substances






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






49. Anything that occupies space and has mass






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