Acids and Bases in Solution I
The number of hydrogen ions would equal the number of hydroxide ions in a solution with a pH of ___ .
7
Which best describes the pH scale?
Acids measure below 7.
A student is comparing two solutions. Solution A has a pH of 4 and solution B has a pH of 10. Which best describes the solutions?
Solution A is more acidic than solution B.
Which best describes a neutralization reaction?
a reaction between an acid and a base
The equation shows a neutralization reaction. H2SO4 + 2NaOH Na2SO4 + 2H2O What is Na2SO4?
a salt
Which solution has the greatest number of hydroxide ions?
baking soda, pH = 9
An acid or a base dissolved in water breaks down into a positive and a _____ ion.
negative
These are strong bases?
NaOH KOH
Positive ions from a base and negative ions from an acid form a _____ .
salt
A student uses red litmus paper to test the pH value of different solutions. Which would result in a color change of the litmus paper?
soap drain cleaner
Apple juice has a lower pH than black coffee. Which best explains the relationship?
Apple juice has more hydrogen ions than black coffee.
The equation shows reactants to a neutralization reaction. Ca2+ + OH- + H+ + NO Which describes what will happen to the H+ when these reactants form products?
H+ binds with OH- to make water.
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?
The antacid is basic and will neutralize the acid entering the esophagus.
A solution has a pH of 2. Which best describes the solution?
a strong acid
A solution has a pH of 8. Which best describes the solution?
a weak base
Which would be least likely to completely dissolve in water?
acetic acid
Which is the order of these solutions from strong acid to strong base? Solutions: household ammonia battery acid baking soda stomach acid antacid
battery acid stomach acid antacid baking soda household ammonia
Which product contains a strong base that would most likely completely dissolve in water?
drain cleaner
The ______ is a measure of how acidic or basic a solution is.
pH
Carla is using a fertilizer that contains nitric acid. How is nitric acid classified?
strong acid
