Which is formed by positive ions from a base and negative ions from an acid? a. Salt b. Vinegar
c. Soap d. Carbonate Which refers to a measure of how acidic or basic a solution is? a. pH b. solubility c. reactiveness d. hardness
What is the pH of a solution that has the same number of hydrogen ions as hydroxide ions?
a. 0
b. 1
c. 7
d. 14
Which solution has the greatest number of hydroxide ions?
a. baking soda, pH = 9
b. milk, pH = 6
c. tomato juice, pH = 3.5
d. vinegar, pH = 2
Which would be least likely to completely dissolve in water? a. hydrochloric acid b. sulfuric acid c. nitric acid d. acetic acid
Heartburn is a form of indigestion felt as a burning sensation in the chest when stomach acid comes back up into the esophagus. Some people take an antacid to relieve heartburn.
Which best describes the antacid’s effect?
a. The antacid is basic and will neutralize the base entering the esophagus.
b. The antacid is basic and will neutralize the acid entering the esophagus.
c. The antacid is acidic and will raise the pH of the esophagus.
d. The antacid is acidic and will lower the pH of the esophagus.
Which best describes the pH scale?
a. Acids measure below 7.
b. Bases measure below 7.
c. Acids and bases measure above 7.
d. Bases and acids measure at 7.
Which is the order of these solutions from strong acid to strong base? Solutions: household, ammonia, battery acid, baking soda, stomach acid, antacid.