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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. Anything that occupies space and has mass






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






4. Occurs when atoms share electrons






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






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






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






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






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






10. Occurs when atoms share electrons






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






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






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






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






15. Subatomic particle without a charge; found in nucleus






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






17. Indicates the formation of new substances from previous substances






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






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






20. Atoms that have lost or gained electrons






21. Atoms that are held together by covalent bonds






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






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






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






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






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






27. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






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






37. Atoms that have lost or gained electrons






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






39. Atoms that are held together by covalent bonds






40. Occurs when atoms transfer electrons to other atoms






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






42. Anything that occupies space and has mass






43. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






49. Subatomic particle without a charge; found in nucleus






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






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