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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. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






8. Atoms that have lost or gained electrons






9. Atoms that are held together by covalent bonds






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






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






12. Subatomic particle without a charge; found in nucleus






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






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






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






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






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






20. Occurs when atoms transfer electrons to other atoms






21. Occurs when atoms transfer electrons to other atoms






22. Anything that occupies space and has mass






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






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






25. Anything that occupies space and has mass






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






27. Subatomic particle without a charge; found in nucleus






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






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






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






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






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






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






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






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






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






37. Occurs when atoms share electrons






38. Indicates the formation of new substances from previous substances






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






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






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






42. Atoms that are held together by covalent bonds






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






44. Occurs when atoms share electrons






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






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






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






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






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






50. Atoms that have lost or gained electrons