Unpacked Content
Scientific and Engineering Practices
Analyzing and Interpreting Data
Crosscutting Concepts
Patterns
Knowledge
Students know:
- An acid may be strong or weak, depending on its reaction with water to produce ions.
- When an acid dissolves in water, a proton (hydrogen ion) is transferred to a water molecule and produces a hydronium ion.
- A base may be strong or weak, depending on the number of hydroxide ions readily produced in solution.
Skills
Students are able to:
- Recognize common inorganic acids including hydrochloric (muriatic) acid, sulfuric acid, acetic acid, nitric acid and citric acid.
- Recognize common bases including sodium bicarbonate, and hydroxides of sodium, potassium, calcium, magnesium, barium and ammonium.
- Use the pH scale to measure acidity or basicity.
Understanding
Students understand that:
- Acids are compounds that contain hydrogen and can dissolve in water to release hydrogen ions in solution.
- Bases are substances that dissolve in water to release hydroxide ions (OH-) into solution.
- The neutralization of an acid with a base produces water and a salt.
Vocabulary
- Acid
- Base
- Indicator
- pH
- Arrhenius theory
- Strong acid/base
- Weak acid/base
- Neutralization
- Titration
