Test your basic knowledge |

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. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






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






10. Subatomic particle without a charge; found in nucleus






11. Anything that occupies space and has mass






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






13. Anything that occupies space and has mass






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






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






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






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






18. Atoms that are held together by covalent bonds






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






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






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






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






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






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






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






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






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






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






29. Occurs when atoms share electrons






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






31. Indicates the formation of new substances from previous substances






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






33. Indicates the formation of new substances from previous substances






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






35. Atoms that have lost or gained electrons






36. Subatomic particle without a charge; found in nucleus






37. Occurs when atoms share electrons






38. Atoms that have lost or gained electrons






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






40. Atoms that are held together by covalent bonds






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






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






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






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






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






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






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






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






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






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