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






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






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






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






5. Anything that occupies space and has mass






6. Occurs when atoms share electrons






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






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






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






10. Subatomic particle without a charge; found in nucleus






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






12. Indicates the formation of new substances from previous substances






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






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






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






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






17. Occurs when atoms transfer electrons to other atoms






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






19. Atoms that are held together by covalent bonds






20. Indicates the formation of new substances from previous substances






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






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






23. Subatomic particle without a charge; found in nucleus






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






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






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






27. Atoms that are held together by covalent bonds






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






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






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






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






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






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






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






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






36. Atoms that have lost or gained electrons






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






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






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






40. Anything that occupies space and has mass






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






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






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






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






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






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






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






48. Occurs when atoms share electrons






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






50. Atoms that have lost or gained electrons