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






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






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






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






7. Atoms that are held together by covalent bonds






8. Atoms that are held together by covalent bonds






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






10. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






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






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






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






21. Indicates the formation of new substances from previous substances






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






23. Atoms that have lost or gained electrons






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






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






26. Indicates the formation of new substances from previous substances






27. Occurs when atoms share electrons






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






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






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






31. Anything that occupies space and has mass






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






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






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






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






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






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






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






39. Subatomic particle without a charge; found in nucleus






40. Occurs when atoms share electrons






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






42. Subatomic particle without a charge; found in nucleus






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






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






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






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






47. Atoms that have lost or gained electrons






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






49. Anything that occupies space and has mass






50. Occurs when atoms transfer electrons to other atoms