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5 Written questions

5 Matching questions

  1. Nonpolar Covalent Bonds
  2. Proton
  3. Polar Covalent Bond
  4. Polar Molecule
  5. Solute
  1. a A subatomic particle with a single positive electrical charge, found in the nucleus of an atom.
  2. b A covalent bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electornegative atom, making it slightly negative and the other atom slightly positive.
  3. c A molecule containing polar covalent bonds and having an unequal distribution of charges.
  4. d A substance that is dissolved in a solution.
  5. e A covalent bond in which electrons are shared equally between two atoms of similar electronegativity.

5 Multiple choice questions

  1. A substance that increases the hydrogen ion concentration in a solution. 0 on pH scale is a strong acid.
  2. The smallest unit of matter that retains the properties of an element.
  3. The amount of energy associated with the movement of atoms and molecules in a body of matter.
  4. 2
  5. An ending material in a chemical reaction.

5 True/False questions

  1. Atomic MassThe number of protons in each atom of a particular element.

          

  2. NucleusAn atom's central core, containing protons and neutrons.

          

  3. Surface TensionThe sticking together of molecules of the same kind, often by hydrogen bonds.

          

  4. Electron ShellsAn energy level representing the distance of an electron from the nucleus of an atom.

          

  5. ReactantsA starting material in a chemical reaction.

          

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