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






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






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






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






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






6. Indicates the formation of new substances from previous substances






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






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






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






10. Subatomic particle without a charge; found in nucleus






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






12. Occurs when atoms share electrons






13. Atoms that have lost or gained electrons






14. Atoms that are held together by covalent bonds






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






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






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






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






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






20. Subatomic particle without a charge; found in nucleus






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






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






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






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






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






26. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






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






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






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






37. Occurs when atoms share electrons






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






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






40. Anything that occupies space and has mass






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






42. Atoms that are held together by covalent bonds






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






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






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






46. Occurs when atoms transfer electrons to other atoms






47. Anything that occupies space and has mass






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






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






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