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






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






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






5. Occurs when atoms transfer electrons to other atoms






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






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






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






9. Occurs when atoms share electrons






10. Atoms that are held together by covalent bonds






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






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






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






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






15. Anything that occupies space and has mass






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






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






18. Atoms that are held together by covalent bonds






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






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






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






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






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






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






25. Occurs when atoms transfer electrons to other atoms






26. Indicates the formation of new substances from previous substances






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






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






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






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






31. Occurs when atoms share electrons






32. Anything that occupies space and has mass






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






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






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






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






37. Subatomic particle without a charge; found in nucleus






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






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






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






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






42. Subatomic particle without a charge; found in nucleus






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






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






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






46. Atoms that have lost or gained electrons






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






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






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






50. Indicates the formation of new substances from previous substances