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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. Indicates the number and types of atoms in a molecule






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






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






6. Subatomic particle without a charge; found in nucleus






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






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






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






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






11. Anything that occupies space and has mass






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






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






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






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






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






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






18. Occurs when atoms transfer electrons to other atoms






19. Indicates the formation of new substances from previous substances






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






21. Occurs when atoms share electrons






22. Atoms that are held together by covalent bonds






23. Atoms that have lost or gained electrons






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






25. Occurs when atoms transfer electrons to other atoms






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






27. Anything that occupies space and has mass






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






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






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






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






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






33. Substance made of two or more elements & one being 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. A pure substance that cannot be broken down into other substances by chemical reactions






38. Occurs when atoms share electrons






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






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






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






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






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






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






45. Atoms that have lost or gained electrons






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






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






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






49. Subatomic particle without a charge; found in nucleus






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







Sorry!:) No result found.

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