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• Calcium carbonate (CaCO3) and soda lye (NaOH) are bases that are also alkali ____.


  Salts
• The ____ scale is used to measure the acidity of a solution.

  pH
• The pH scale is the tool used to indicate the concentration of hydrogen ____ in a solution.

  ions
• A strong acid produces many ____ ions.

  Hydrogen
• Within a group, acid strength increases as ____ ____ increases moving

  down the periodic table.

  atomic radius
• What type of paper is used to measure pH?

  litmuss or indicator
• Larger ____ are more stable, so they are more easily separated from the

  hydrogen ion and the corresponding acid is stronger

  anions
• A more ____

  atom more strongly attracts electrons away from hydrogen atoms in solution, so more hydrogen atoms lose an electron

  to become H+ cations.

  electronegative
• Within a period, acid strength increases as ____ increases moving from

  left to right across the periodic table.

  electronegativity
• Strong bases act in a manner similar to strong acids, producing ____ ions instead of hydrogen ions.

  Hydroxide
• WHat is BOH?

  A base
• ____ solution changes from colorless to pink for a pH greater than 8.2.

  Phenolphthalein
• ____ Blue (BTB) turns yellow in acidic solutions and blue in basic solutions.

  Bromothymol
• ____, ____ and purple

  ____ appear red in acidic solutions

  but turn blue or purple in basic

  solutions.

  Cherries, beets and purple cabbage
• The flowers of

  ____ plants are blue in

  acidic soil but pink or white

  in basic soil.

  Hydrangea