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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. Anything that occupies space and has mass






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






3. Atoms that have lost or gained electrons






4. Subatomic particle without a charge; found in nucleus






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






6. Anything that occupies space and has mass






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






22. Occurs when atoms transfer electrons to other atoms






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






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






25. Indicates the formation of new substances from previous substances






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






27. Subatomic particle without a charge; found in nucleus






28. Atoms that have lost or gained electrons






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






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






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






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






33. Atoms that are held together by covalent bonds






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






35. Occurs when atoms share electrons






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






37. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






45. Occurs when atoms share electrons






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






47. Indicates the formation of new substances from previous substances






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






49. Atoms that are held together by covalent bonds






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