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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 having a positive charge; found in nucleus






2. Indicates the formation of new substances from previous substances






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






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






5. Anything that occupies space and has mass






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






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






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






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






10. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






17. Subatomic particle without a charge; found in nucleus






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






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






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






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






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






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






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






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






26. Atoms that are held together by covalent bonds






27. Indicates the formation of new substances from previous substances






28. Atoms that have lost or gained electrons






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






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






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






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






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






34. Subatomic particle without a charge; found in nucleus






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






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






37. Occurs when atoms share electrons






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






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






40. Atoms that are held together by covalent bonds






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






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






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






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






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






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






47. Occurs when atoms share electrons






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






49. Atoms that have lost or gained electrons






50. Occurs when atoms transfer electrons to other atoms