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






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






4. Anything that occupies space and has mass






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






6. Indicates the formation of new substances from previous substances






7. Subatomic particle without a charge; found in nucleus






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






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






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






11. Atoms that are held together by covalent bonds






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






13. Atoms that have lost or gained electrons






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






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






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






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






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






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






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






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






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






23. Atoms that are held together by covalent bonds






24. Anything that occupies space and has mass






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






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






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






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






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






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






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






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






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






34. Occurs when atoms transfer electrons to other atoms






35. Occurs when atoms share electrons






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






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






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






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






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






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






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






43. Occurs when atoms share electrons






44. Subatomic particle without a charge; found in nucleus






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






46. Occurs when atoms transfer electrons to other atoms






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






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






49. Atoms that have lost or gained electrons






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