The pH scale is based off of the concentration of _________ ions.
  • Oxygen
  • Hydrogen
  • Nitrogen
  • None of the others
What is a solution that has an excess of hydroxide (OH-) ions?
  • pH=6.5
  • acid
  • neutral
  • base
An acid/base reaction always produces:
  • H2
  • H2O
  • NaCl
  • H3O+
BASE + ACID ----> SALT +?
  • water
  • oxygen
  • hydrogen ion
  • hydroxide ion
An organic substance that changes color in the presence of an acid or base
  • indicator
  • inhibitor
  • catalyst
  • salt
According to the pH range which substance is more acidic than lemon juice
  • Hydrochloric acid
  • cabbage
  • milk
  • lye
Which food is the most acidic?
  • bananas
  • lemon juice
  • orange juice
  • fish
If a solution is basic which ion will be more present?
  • H+
  • K+
  • OH-
  • H-
A solution contains the same number of H+ ions as it contains OH- ions, what will it be?
  • Acid
  • Base
  • Neutral
If you are burned with a strong base, what should you use to safely neutralize it
  • vinegar (pH = 4)
  • water (pH = 7)
  • ammonia (pH = 9)
  • baking soda (pH = 10)
This is an image of a.....
  • strong base
  • strong acid
  • weak base
  • weak acid
This is an image of....
  • an acid
  • a base
  • a neutral solution
The term alkaline represents....
  • an acid
  • a neutral solution
  • a base
The pH scale measures...
  • ...the strength of an acid.
  • ...the strength of hydrogen ions.
  • ...the concentration of hydrogen ions.
  • ...the concentration of an acid
pH =10
  • acid
  • base
  • neutral
A basic solutions pH is
  • 7
  • less than 7
  • greater than 7
  • between 0-14
A solution is considered an acid if it's pH is
  • equal to 7
  • less than 7
  • greater than 7
  • greater than 14
Salt water did not react with the Red or Blue litmus paper. This must mean
  • Salt water is a Base
  • Salt water is an Acid
  • Salt water is neutral
  • Salt water is charged
Changes the color of indicators.
  • Acids
  • Bases
  • All
Turns litmus red
  • Acids
  • Bases
  • All
Turns litmus blue.
  • Acids
  • Bases
  • Salts
  • All
What is shown here?
  • a hydronium ion
  • a hydroxide ion
  • a water molecule
  • an acid
Acid + Base ₋-->
  • salt + hydrogen
  • salt + water
  • salt + carbon dioxide + water
  • salt
HCl + NaOH →
  • NaH + ClOH
  • NaCl + H2
  • NaCl + H2O
  • NaCl + Cl2
The pH scale measures ____ and ____
  • acidity and basic
  • the temperature
  • how fun a chemistry quiz is
  • none of the above
Ion
  • A charged particle or atom
  • Compound formed between a metal and a nonmetal
  • Any group of compounds that produce H+
  • Any group of compounds that produce OH-
Acid
  • Any group of compounds that produce H+ ions
  • Any group of compounds that produce OH- ions
  • Ionic compound formed between a metal and a nonmetal
  • A charged particle, atom, or ion
Base
  • Any group of compounds that produce H+ ions
  • Any group of compounds that produce OH- ions
  • Ionic compound formed from a metal and a nonmetal
  • A charged particle, atom, or ion
Concentration
  • The reaction between an acid and a base which produces salt and water
  • Compound formed by a metal and a nonmetal
  • The amount of solute per unit of solution
  • Liquid indicator that changes pink in the presence of a base
Indicator
  • Liquid indicator that changes pink in the presence of a base
  • A type of paper used to indicate the presence of acids and bases
  • a chemical that changes color in the presence of acids and changes a different color in the presence of bases
  • the amount of solute dissolved in solution
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