Acids
The sharp, characteristic taste of acidic foods like lemons, sour candy, and green apples.
What is sour?
The physical texture or feel of basic solutions like soap or bleach on your skin.
What is slippery (or soapy)?
The exact pH value of pure distilled water at room temperature.
What is 7?
A common household liquid containing acetic acid used in salad dressings and cleaning.
What is vinegar?
The color blue litmus paper turns when dipped into an acid solution.
What is red (or pink)?
The color red litmus paper turns when exposed to a basic solution.
What is blue?
The typical numerical range of the pH scale used to measure acidity and alkalinity.
What is 0 to 14?
A weak basic powder commonly found in kitchens and used to settle upset stomachs or neutralize acids.
What is baking soda?
The specific ion released in abundance by acids when dissolved in water.
What is a hydrogen ion (H+)?
The ion released into solution by bases when dissolved in water.
What is a hydroxide ion (OH-)?
The two primary products formed during a neutralization reaction between an acid and a base.
What are salt and water?
The strong acid produced naturally in the human stomach to help digest food.
What is hydrochloric acid?
The gas produced when acids chemically react with active metals like zinc or magnesium.
What is hydrogen gas?
The taste profile associated with basic substances like dark chocolate or soap.
What is bitter?
Between lemon juice (pH 2) and bleach (pH 12), the solution with the higher concentration of hydrogen (H+) ions.
What is lemon juice?
Household cleaning items such as ammonia, drain cleaner, and soap fall into this chemical category.
What are bases (or alkaline substances)?
An acid's pH value relative to pure water.
What is less than 7?
A base's pH value relative to pure water.
What is greater than 7?
The ratio of Hydrogen ions (H+) to Hydroxide ions (OH-) in pure water.
What is equal (1:1 ratio)?
Rainwater naturally has a pH of around 5.6 due to dissolved carbon dioxide, classifying normal rainwater as this relative to pure water.
What is slightly acidic?