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5 Written Questions

5 Matching Questions

  1. Solvent
  2. Atomic Number
  3. Nonpolar Covalent Bonds
  4. Covalent Bond
  5. Matter
  1. a A covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
  2. b The dissolving agent of a solution. Water is the most versatile solvent known.
  3. c The number of protons in each atom of a particular element.
  4. d A strong chemical bond in which two atoms share one or more pairs of outer-shell electrons.
  5. e Anything that occupies space and has mass.

5 Multiple Choice Questions

  1. A subatomic particle with a single positive electrical charge, found in the nucleus of an atom.
  2. A starting material in a chemical reaction.
  3. An atom's central core, containing protons and neutrons.
  4. A scale we used to describe how acidic or basic a solution is. The scale ranges from 0-14, 0 being the most acidic and 14 being the most basic. 7 is neutral (pure water)
  5. 18

5 True/False Questions

  1. Electron ShellsA subatomic particle with a single negative electrical charge. One or more electrons move around the nuclues of an atom.

          

  2. ElectronA subatomic particle with a single negative electrical charge. One or more electrons move around the nuclues of an atom.

          

  3. Acid PrecipitationRain, snow or fog that is more acidic than pH 5.2.

          

  4. SoluteA substance that is dissolved in a solution.

          

  5. What 4 elements make up about 96% of living matter?Oxygen, carbon, hydrogen, and nitrogen.

          

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